[English subtitles are available]
[This story is fictional.]
Hello,
please fill in
your personal information here.
OK.
Hello,
what can I do for you?
Should I write down the opening bank?
Yes.
What are you doing!
Keep down if you don't want to die!
Don't move. Don't move!
You, sit there.
Don't move.
[China Huimin Bank]
Put money on the desk!
Right now!
Hurry up!
Open it.
Lower your head.
You called the police?
Boss.
Run!
Who?
You did it?
No.
It's him!
Boss, hurry up!
[China Huimin Bank]
Do you have a pen?
Yes.
Four point eight.
[China Huimin Bank]
Hurry up!
Fast! Save people first!
Yes.
Officer, robbery!
Four men fled.
It was five men.
Four robbed and one drove the car.
Black Toyota. The license plate number is Liao D45H56.
Are you sure?
Yes.
But this is a fake plate,
from the Archives Bureau.
How did you know it?
Only the Archives Bureau has a license plate number
with letter H in the middle.
Are you from the Vehicle Administration?
No, I am from the Statistical Bureau.
I remembered the face of the leader of those robbers.
Intercept the robbers in intersections quickly.
Their vehicle is a black Toyota.
The license plate number is Liao D45H56.
Liao D45H56.
Snow, you stay here to investigate the scene.
Yes. Guo,
take the gentleman to the Police Station to state the case.
Yes.
Other guys come with me.
Yes.
Let's go.
The length from the eyebrow to the chin is 15 centimetres.
His face is 14.5 centimetres wide.
The distance between two eyebrows is 3.12 centimetres.
His eyes are like two triangles
with 2.6 degree inner eye corner
and 2.1 degree outer corner.
The angle of the upper eyelid is 92 degrees.
The distance between two pupils is 6.66 centimetres.
The diameter of the pupil is 0.7 centimetres.
His nose is 5.8 centimetres long.
The nostrils are oval.
[Pingkang Police Station CPC Pingkang Police Bureau Committee]
Captain Sun.
Snow, what about the surveillance at the bank?
The monitoring of the bank hall has been destroyed by suspects.
The public monitoring showed that,
after the suspects drove away from the scene,
they changed the vehicle into a red electro-tricycle
in the Nanping pedestrian crossing.
They drove it to Jiefang road,
then gave up the vehicle and escaped away.
The Jiefang road is next to the farmers‘ market.
The suspects used the crowd as cover to escape.
They stole the electro-tricycle.
The owner is a disabled person.
Guo,
did you got the information of the black Toyota?
Yes.
The car was also stolen by them.
They used the license plate of Archives Bureau.
Where is that eyewitness?
He is in the portrait room.
He provided many numbers.
His ears are 4.8 centimetres long
and his mouth is 5.3 centimetres long.
The thickness of the upper lip is 0.4 centimetres,
and the thickness of the lower lip is 0.26 centimetres.
His head size is about 45 centimetres.
What else?
Nothing.
Is it him?
Add one-eighth more hair.
Draw the hairline up to 0.3 centimetres.
That's right.
Have you got the result?
I have drawn the simulated portrait of the suspect
according to the data provided by Mr. Chen.
Data portrait?
Yes.
I digitalized the face of the suspect
and restore it according to proportion.
Is it reliable?
Yes, of course.
I often play the game with my kids at home.
Mr. Chen,
it is a criminal case, not a game.
Paint another portrait.
The length from the eyebrow to the chin is 14.5 centimetres.
The face is 13.5 centimetres wide.
The distance between two eyebrows is 3.1 centimetres.
The eyelash is 0.6 centimetres long.
The angle of inner corner of eyes is 2.8 degrees,
and the angle of outer corner is 2.7 degrees.
The angle of the upper eyelid is 93 degrees.
The distance between two pupils is 6.62 centimetres.
The diameter of the pupil is 0.7 centimetres.
The nose is 5.5 centimetres long.
The nostrils are diamond-shaped.
The head size is 43 centimetres.
The ears are 4.9 centimetres long.
Pay attention to earlobes.
The thickness of the earlobes is 0.3 centimetres.
The mouth is 5 centimetres long.
The thickness of the upper lip is 0.4 centimetres
and the thickness of the lower lip is 0.24 centimetres.
Who are you painting?
You!
Captain Sun, it's exactly what you look like.
There are six moles on your left face.
Five moles.
Six.
One, two, three, four, five, six.
Captain Sun,
there are six moles.
I got a new mole?
Be serious!
Guo,
Compare the simulated portrait of the suspect with others in the database immediately.
Yes!
On September 20th,
there was an armed bank robbery in our city.
The robbers snatched 4.2 million yuan
in a violent way.
The policemen made every effort to survey the case.
The case was successfully solved in just one day.
The suspect is a gang headed by Ding Qiang, which has just been released from the prison.
When they robbed,
Chen Zheng, staff of the Statistical Bureau,
risked his life to fight with robbers.
He also described the suspect's appearance precisely with numbers.
[Ding Qiang Robbery Gun Possession]
He helped the police paint the portrait of the suspect,
making outstanding contributions to solve the case.
[Numeral Whiz]
People called him Numeral Whiz affectionately.
Let's take a picture.
[The Unexpected Man]
Numeral Whiz, please tell us.
How did you fight with robbers?
Numeral Whiz, people are all curious.
How to paint the portrait with numbers.
I heard that a film company
planed to adapt a film according to your story
and invited you as a male lead.
Is it true?
Ladies and gentlemen.
Thank you for your love and care.
I am just an ordinary man
not as cool as they described.
Thank you.
And no interview. I have a phobia about flashlight.
Thanks. Thank you very much.
Numeral Whiz. Numeral Whiz.
Hey, guys.
Numeral Whiz has other somethings to do today.
I am his assistant.
You can interview me.
I have no phobia.
Numeral Whiz. Numeral Whiz. Numeral Whiz!
Director Song.
Could you please get
those reporters out of here?
I am really afraid of showing myself in public.
You know that.
Oh, my boy.
It's a good chance.
It's a good thing
to be interviewed.
Look,
the headline of the Tencent news.
Numeral Whiz Caught Robbers with his Wise.
This is a false report,
and people are wrongly informed.
I just helped paint the portrait.
These's nothing about catching them with wise.
Let alone the name of Numeral Whiz.
Look at you. Global view.
Global view.
If they can increase your influence,
they can call you everything. Spider man is better.
What you are representing now is not only yourself,
but also the whole Statistical Bureau.
You are the Deputy Director of the Statistical Bureau.
What? When did I become the Deputy Director?
Now.
[Letter of Appointment]
This is your letter of appointment.
Move your office next to mine.
No.
Director Song, thank you. Thank the Bureau.
But I won't receive a reward without making a merit.
Chen Zheng,
immoderate humility is arrogance.
Hello?
Hello, Mr. Song.
Maybe your bureau's statistic data is wrong.
We didn't overstate the production.
Mr. Wang, calm down.
You can talk with the responsible person.
Hello, Mr. Wang.
Your production speed of canned red wine
is 0.83 bottles per second
and 3000 bottles per hour.
The output of one assembly line per day
is 72 thousand bottles.
The annual output of one assembly line
is 26.28 million bottles.
And the annual output of four assembly lines
is 105.12 million bottles.
But the number you submitted
is 250 million bottles,
which is the output of almost ten assembly lines.
We don't need to talk about
whether you can produce it in every moment
in a year.
How can you put the equipment of the ten lines
in your small-scaled company?
How can you put the equipment?
Er... Sorry.
It seemed that my staff made a mistake.
I don't know the situation.
I'll check it.
Such a wily old fox.
He wanted to defraud the state of industrial support funds.
We can't let them do that!
Well, what were we talking about?
I won't receive a reward without making a merit.
Look!
now you deserve it!
Move your office quickly!
The young boy didn't know whether the snake would appear or not.
He was a little scared
and didn't dare to go ahead.
He wanted to back down.
A car drove away fast.
Police cars chased after it.
Xiaowu shouted hysterically,
you are daydreaming.
I'm not going to wait for death!
Xiaowu crossed the jungle...
What Xiaowu said just now.
The tone should be a little more crazy.
Xiaowu shouted hysterically,
you are daydreaming!
I‘m not going to wait for death!
He crossed the jungle and the lake.
When he ran up a hill,
he could see everything clearly.
Recently I met my friend in the street.
It's said that I was admitted to the people's police.
They asked me,
can I endure the hardship as a policeman?
Chen Mo.
Dad. Mom.
Sister, sister.
What are you doing?
Chen Mo, how do you feel today?
Director Li,
I wonder if I can leave the hospital now.
Fine.
You almost recover.
Chen Mo,
could you stay in the hospital two more days?
I want to leave here today.
It's OK.
Uncle can leave here!
After coming back home,
you should comfort him.
When a man become disable all of a sudden,
psychological injury will be more severe
than physical injury.
Director Li,
can his leg
be the same as before?
No, his nerves was injured.
Uncle, you are going to leave here. Are you happy?
Of course.
Come on.
OK. Let's move it together.
One, two, three. Go!
It's too hot.
Uncle, why is it so hot in your room?
I have bought the air conditioner. They'll assemble it tomorrow.
Uncle, you had bad luck.
Why were you hit by a car
when you walked well.
I really had bad luck.
You still have no clue about the driver to be blamed?
Yes.
There were too many trucks without license plate on the road.
There's no way to check it.
He'll pay for it.
Chen Mo,
you live here alone
and no one take care of you.
I really worry about you.
Maybe you should stay at my home.
Go back now. It's too hot here.
Don't let these two kids get sunstroke.
Snow.
[Pingkang Police Station]
Print out the document for me quickly.
OK.
[Pingkang Police Station Pingkang Education Bureau]
Why is the computer in a blank screen?
What's wrong?
Me too.
Is there a power cut?
No.
How did it happen?
[Pingkang Police Station]
What's this?
What is it?
The computers suffered from computer virus.
[Chen Mo Computer Repair and Assembly]
How is it going?
I've almost finished.
I am done.
Help me.
OK.
One, two, three.
Put it here.
Uncle, why did you buy the air conditioner by yourself?
Because I have no money.
Why?
Stop it. No money just means no money.
Hui, stop playing games.
It will harm your eyes.
Fine.
Read fictions to me.
OK.
Continue to read the fiction you read last time.
The yellow smoke
seemed endless,
suffusing the sky
over the depression.
Dalong said, don't move!
-I feel cool. -It's poisonous.
The young boy crossed the village quickly.
There's wind.
He was wheezing slightly,
so he stopped to have a rest.
Hello?
Liu,
how is it going?
I can't solve it right now.
Chen Zheng, come here.
It is the typical hacker intrusion.
For forty minutes, I still can't turn off the computer normally.
I had to turn off it forcely.
There are all those numbers when I turned on it.
Those numbers should be Morse code.
When interpreting it,
it turned out to be meaningless Chinese characters.
Captain Sun, what can I do for you?
You are sensitive to numbers.
I want to see whether you can make further discoveries.
By the way,
I don't know whether it is a coincidence.
In the more than 180 Chinese characters,
our names appeared
most frequently.
Have a look.
So,
the hacker was intended for us.
Maybe.
Maybe it is a trick.
[Happy Mid-Autumn Festival]
[Flower Demon]
Hello, everyone.
Thanks for giving me the chance to communicate with you.
Thanks.
Flower Demon?
Who are you?
You illegally intruded into the network of public security system.
What do you want to do?
You all enjoy happiness with your family,
but some people are waiting for
the trial of death in the jail.
This kind of feeling,
as winners, you never feel.
Friend,
don't be mysterious.
Do you know me?
Numeral Whiz?
Chen Zheng.
Do you think you are awesome?
No.
I despise you best
who won reputation by ruining others.
You want to save Ding Qiang?
Everyone should pay debts.
If it were you who are waiting for death in the jail,
your family would do something.
Please come to the point.
I have to go home with my kids for the festival.
A girl with her daddy is happy.
Liu,
change the network into the private network.
Yes.
Are you going to look up my IP address?
This is my IP address.
Don't play the devil.
What do you want?
Release people. Can you?
Who? Ding Qiang and his gang?
It's impossible!
They are all habitual criminals
who committed numerous crimes.
They can't be released.
No room for discussion?
I can discuss with you,
but the law has no room for discussion!
[IP: the US, confirmed. Embezzle the IP address or use VPN. The hacker is in Pingkang city. User name: Flower Demon. The address is blocked.]
Captain Sun, look!
She controlled the monitoring.
You're quite capable.
I think so.
Listen.
Don't act weirdly.
Get my system back on,
whoever you are!
And turn yourself in to me!
I'll call it a prank and let you off!
Otherwise, you'll have to
spend the New Year in jail with Ding Qiang and his gang!
Shut up!
Don't talk to me like I'm a prisoner.
You're just a police.
It's Not God.
What a beautiful day.
Look out the window.
It's cool and dry.
And the sunshine is warm.
But why do I feel cold?
This is warning.
I planted three bombs in this city.
This is the least powerful one.
Think about my request.
Let them go or let other people die?
Flower Demon!
You better listen to me!
I'm telling you!
Show yourself to me if you can!
This is a terrorist attack!
What's this?
What's going on?
Here come the policemen.
Security guard.
What about the casualties?
Eight were seriously injured. Five had minor injuries.
Which floor did it explode?
On fifth floor. An advertising company.
Thank you.
Officer. Officer.
There you are.
We were having a meeting just now.
All of a sudden it exploded.
What was it?
I don't know. I felt like complete crap.
Lock down the area and locate the explosion.
Yes.
Snow.
Here.
Download the video monitoring of the whole building for a week,
especially the fifth floor.
Notify the Network Section
to locate the suspect's hiding place as soon as possible.
Yes.
This is too weird.
Everyone in this world need to pay debts.
If you‘re the one waiting for death in jail,
don't your loved ones have to do something?
Hello?
Captain Sun, we got the results from the voice test.
The suspect's voice
has been altered.
Through technical process,
it's certain that the other party is indeed a woman.
But the sound
has been altered several times.
So it's hard to pin down her age.
What about Liu Dong?
Hello, Captain Sun.
I have investigated the suspect's IP thoroughly.
The address is in Massachusetts, USA.
The user registration information is a Chinese student,
named Ding Ruobing.
Female. Twenty-four.
Graduated from MIT in mathematics.
A computer whiz.
Now she's in China.
She's the daughter of Ding Qiang, the ringleader in the bank heist.
Got it.
Ding Qiang's daughter.
This is revenge.
Looks like
she's a tougher character than her father.
I wanted to spend Mid-Autumn Festival with my son.
Forget it.
[Pingkang Detection Center]
Hello.
We're already at home.
When are you coming back?
I have an emergency here.
You take the kids and my brother for dinner.
Don't worry about me.
He didn't come.
How come you didn't ask him? It's a big festival.
I... I asked him.
But he said no.
Did you buy the mooncake?
No.
I'll go out and get some later.
You're not going anywhere. Just stay at home
until I get back.
Has your computer been soaked in water?
No.
Impossible.
There's a water stain on this motherboard.
And the wiring's burned.
Oh, I remember.
The other day I knocked over my water glass
and spilled water all over my keyboard.
Can it be fixed?
No problem.
[Detection Center]
Ding Qiang, Ding Ruobing is your daughter, right?
Tell me.
Yes.
Where is she?
Why did you find my daughter?
I break the law. Should my daughter be punished as well?
She is a terrorist now.
She planted bombs in our city.
And she blackmailed the police into releasing you.
You mean,
if you don't let me go,
my daughter will detonate the bomb?
Yes.
Well, there's a way.
Tell me.
Why don't you
just let me go?
Keep dreaming.
Ding Qiang, I advise you.
If Ding Ruobing
is your daughter,
you'd better assist us
to find her out.
Maybe it could save her life.
If she does go her own way,
she will probably have no chance of survival.
Do you understand what I'm saying?
Officer.
I advise you not to go your own way.
Release one man, ensure the safety of the whole city.
It's worth it.
You won't turn back
unless knocking into the wall?
It's you!
Can I go now? Officer.
Scum!
Captain Sun.
Hello.
Captain Sun, we got the location of the explosion.
You see.
It‘s in their office filing cabinet by the window.
Explosives?
Preliminary assessment is a hot-melt homemade time bomb.
This window
is facing our department.
Clearly, the suspect blew it up for us to see.
Snow, what about you?
During the explosion,
the building's cameras automatically shut down.
It lasted three minutes.
I doubt that the suspect hacked into the monitoring system.
And according to the security guard in the control room,
the same automatic shutdown occurred
at twelve o'clock on the 22nd,
and it lasted half an hour.
Twelve o'clock at noon on the 22nd.
This is definitely the time
when the suspect
planted the bomb.
Well, download
all the traffic cameras leading to the Sky Building
at this point in time.
Look for suspicious people one by one.
There are a dozen intersections. How do we do that?
One by one!
Oh my God.
Officers, how's it going?
Don't think about it.
Ding Ruobing, I am telling you.
Ding Qiang is unlikely to be released.
Then I'll have to detonate the bomb.
Ding Ruobing.
Do you know what happens when you challenge the police?
It's a dead end.
I think so.
But some people will die before me.
The second bomb is ten times more powerful than the first.
I want to know, as a policeman,
what's more important.
The prisoner or protecting the innocent?
I‘ll tell you what.
Being a policeman, the most important thing
is never give in to evil like you.
Well, prepare for the body.
Ding Ruobing, wait.
Ding Ruobing.
Ding Ruobing, you jerk!
Did you change your mind? Officer Sun?
Yes. I give up.
You don't give in to evil, do you?
But I don't think you're evil.
Is it evil?
A girl would risk her life
to save her dad.
What's this?
It's human nature.
It's great love. It's great filial piety.
I can totally understand that.
Indeed.
I took your dad in. That's right.
But I don't have the authority to let him go.
And as you know,
your dad had a man killed.
Who dares to let him go?
Bingbing, let's take it easy.
Talk it over calmly.
That's right.
This is the attitude of negotiation.
Yes. Yes. Yes.
I helped Captain Sun arrest your father.
There's no point in hurting those innocent people.
Every injustice has its perpetrator. Every debt has its debtor.
Numeral Whiz.
You've got a lot of nerve.
Everyone says you're a math genius.
What a coincidence.
Everyone says I'm a math genius too.
How about we two geniuses take a chance?
How?
The other two are ticking time bombs.
I'll give you an equation for each bomb.
Solve it and you'll find the bomb.
What if I can't?
We'll just have to wait for it to explode.
Am I supposed to take it down?
Bingbing.
Let's try something else.
Don't bargain with me!
Solve the problem
or let those innocent people
bury with my father and me.
OK. OK. OK.
I'll solve it.
Numeral Whiz.
You must live up to your name.
Many lives are in your hands.
Wish you good luck.
These are four questions.
Do you know NP-completeness?
I get it.
The first bomb was loaded with ten kilograms of dynamite.
You only have thirty minutes left to solve the problem.
NP-completeness is what problem?
Each equation she gave is divided into positive and subsidiary problems.
If we solve the positive problem,
we'll get a general location of the bomb,
let's say a mall.
Only by solving the subsidiary problem can we know the exact location,
such as which counter in the mall.
What are you doing here?
Hurry up!
Boss, what are we going to do?
Get out of here.
Let Mr. Chen work it out quietly.
Be quick.
Captain Sun.
Calm down.
Are you sure?
No.
Director Wang.
What's going on?
Chen Zheng is solving problems.
Tell me about your response.
Yes. There're three key points.
The first is to solve the problem
and stabilize Ding Ruobing.
I have informed the Education Bureau
to organize elite math teachers to come here,
helping Chen Zheng solve the problem.
The second is to find Ding Ruobing.
The Technical Section and Network Section are working together
to locate her hiding place.
And I sent people
to check the bomb and monitor,
visit Ding Qiang's home,
and strengthen the interrogation of Ding Qiang's gang.
Third, block the news
and calm the people.
The explosion at the Sky Building
has caused panic.
Be careful.
We can't let the second bomb go off.
Yes.
a is greater than or equal to four.
Director Wang, can you tell us something
about the explosion at the Sky Building?
Is the explosion related to terrorism?
All the media friends.
Regarding the explosion at the Sky Building,
we're working on it.
Please don't create panic.
Thank you.
Miss Zhang, Mr. Wang. Be quick.
[Math Teachers' Office]
In the security products containing M defective products.
Mr. Li, suspend the class and follow me.
Hurry up!
Teachers, get in the car!
Lady.
Hello.
Do you know this girl?
Yes, this is Ding Qiang's daughter.
Her name is Ruobing,
coming from the United States.
Have you seen her lately?
No, I haven't seen her for a while.
Chen Zheng.
These are elites of the city's math teachers.
They'll help you solve the problem.
OK.
Liu. Paper and pen.
OK. Teachers. Please sit down.
These are the four questions.
Hurry up.
Officer Sun.
Why do you have so many old men and women here?
Solve your questions.
Whoever started the trouble should end it.
This is our game.
No one else is allowed to play.
Get out!
Bingbing.
You did a good job on this problem.
I want them to get involved.
Get out of here!
OK. OK. OK. Get out. Get out.
Teachers.
Let's go out with me.
Hurry up.
The so-called Numeral Whiz
is just angling for fame.
You have fourteen minutes.
a is greater than or equal to zero.
Less than or equal to zero.
I solved it. I solved it.
I solved it.
Ding Ruobing, you can't go back on your word.
Where's the bomb?
[Museum]
Museum. Museum.
The bomb is in the museum.
I got it.
Groups quickly assemble at the museum.
It takes them at least six minutes to get there
without a traffic jam.
That is to say,
they only have six minutes
to find the bomb.
All their hopes are pinned on you.
Thank you.
It took you sixteen minutes to solve the positive problem.
The subsidiary problem is obviously harder than the positive problem.
Can you stop talking for a second?
You're interfering with my answer.
It's not fair.
OK.
[Pingkang Museum]
Fast! Fast!
Fast!
Captain Sun, what's going on?
Don't panic.
OK.
Someone planted a time bomb in the museum.
Where is it?
Don't panic.
You take the rest of them,
evacuating the tourists to the parking lot outside.
Fast!
OK. Follow me.
All security guards, follow me.
Hurry up!
Fifteen eighth is equal to b and b is greater than or equal to two.
y is equal to two.
Greater than or equal to two.
My friends, what you are seeing now
is the treasure of our museum.
It's called Pisces Jade.
Pisces Jade was discovered in...
Friends, there's a bomb.
Go! Go!
Get out of here. Go to the parking lot. Go!
Go! Go! Go!
Get out of here. Go to the parking lot. Go!
Go!
Go! Go! Go to the parking lot!
Go! Get out of here! Go!
Go to the parking lot! Go!
Stop looking.
Stop looking. Go!
What happened? We're not done yet.
Yes. Yes. Yes.
There's a bomb. Go downstairs to the parking lot. Go!
Run! Fast!
Fast! Fast! Fast!
Hurry up! Hurry up! Hurry!
Go!
Be quick! Be quick!
Run! Run fast!
Go! Go! Go!
Run! Run fast!
Go! Go! Go!
Hurry up!
Be quick!
Only three minutes.
How are things going over there?
He hasn't solved it yet.
It feels like Chen Zheng has lost his train of thought.
You see.
He hasn't solved a word yet.
Leave him alone. Stay on the line.
Yes.
fx
[High School, 1993]
Whoever solves the problem first
will have the apple.
Brother, why are you so good at solving problems?
Teach me some tips.
Here is a stove,
a tap,
a box of matches and an empty kettle.
How do you
boil a full pot of water?
I'll turn on the tap, fill up the empty kettle,
strike the match, light the stove,
and boil the water.
Right.
One more question for you.
Here's a stove, a tap,
a box of matches,
and a half pot of water.
How do you
boil a full pot of water?
Fill the half-full pot with water.
Then strike the match, light the stove,
and boil the full pot of water.
Wrong.
What you just said is normal logic.
A mathematician
empties the half-full pot,
which becomes
the first problem that has just been solved.
Reduction.
I figured it out!
That's great!
Where's the bomb?
I've already solved the subsidiary problem.
Where's the bomb?
This problem is really hard to solve.
But I solved it. Where's the bomb?
Garbage bin.
Garbage bin. Garbage bin.
Garbage bin.
There're over a hundred garbage bins in the museum.
Which one?
Find it one by one. Go!
Go!
Ding Ruobing, admit defeat for bet.
You should give me the exact location.
The parking lot.
Parking lot.
Parking lot!
Go to the parking lot!
Get away! Get away!
Everybody gets out of here!
Get away!
Hurry, scatter to find it!
Scatter to find it!
Explosion-proof tank!
-Captain Sun. -Captain Sun.
Captain Sun.
Get down!
This afternoon,
there were two separate explosions
[Today's News]
in Sky Building and Museum of the city.
Many others were injured in the blast,
including 6 serious and 8 minor injuries.
So far,
no deaths have been reported.
Police are investigating the cause of the blast.
Please feel assured that
we will pull out all stops
to detect these two explosions.
We hope the media and citizens to keep calm
and don't spread false news.
Thank you.
Li Bao reports from the scene.
Ding Ruobing, you're insane!
Do you have any humanity!?
You placed the bomb in the parking lot.
You figured that people would be evacuated there.
Hundreds of lives could have been lost.
Cut the crap.
What was the point of
placing bombs in an empty place?
I warn you seriously.
Where's the third bomb?
Confess now.
Confess and surrender now
and you will be shown mercy.
I also tell you seriously.
Don't you ever talk to me like an interrogator again.
Otherwise I'll detonate the bomb right now.
All right.
You win.
All right.
The bomb is already counting down.
To waste your time
or to keep the game going. Do as you like.
Set your question.
It's a problem from Alan Turing's artificial intelligence.
Even he himself couldn't solve it.
To solve it in half an hour
is totally out of the question.
So I'll give you one hour.
As long as you solve the problem,
I'll post the exact location of the bomb.
You think too highly of me. I'm not a genius.
Aren't you a genius?
Math genius Chen Zheng.
Numeral Whiz Chen Zheng.
Can news be fake?
Come on, can you...
I hope you know it perfectly.
It's not the bargaining in the market.
It explodes if you fail.
Chen Zheng.
Be quick.
Chen Zheng.
Liu, how's it going?
We're locating
and have found her covert IP address
in Songhua District of the city.
Great, hurry to narrow the scope down.
We must find her.
She's really too unruly.
Yes, Sir.
She's an absolute master-hand.
She's hidden herself
through multilayer hackers.
Surely we shall find her,
but it takes time.
You have worked hard.
Snow, how are things at your end?
We've checked
all the surveillance cameras at the intersections to Sky Building.
There is a man with great suspicion.
At 12:10 p.m. on the 22nd,
the same time period
when the surveillance system of Sky Building malfunctioned,
this man walked towards the building.
How could you make sure?
There was no sign of him
in the surveillance video of other intersections.
The only direction he could go to was Sky Building.
At 12:25 p.m.,
he appeared again in the scene
but his black plastic bag was gone.
And his choice of clothes
was obviously counter reconnaissance.
This person indeed walked like a male.
Replay it.
That's it. It's a man.
Perhaps it wasn't Ding Ruobing herself
that placed the bombs.
In addition,
Drug paraphernalia was found
in Ding Ruobing's room in Ding Qiang's house.
Li.
It belongs to Ding Qiang or Ding Ruobing?
It's still unclear.
Guo,
how about you?
No results.
All of Ding Qiang's fellows
denied they knew where Ding Ruobing is.
They didn't seem to tell lies.
I checked her visa record
which shows Ding Ruobing returned home three months ago
and is still in the country.
Captain, there's a lot of press at the door
asking for you.
Why haven't they come out?
They come out. There they are.
Come on! Hurry up!
Guys,
what's going on with you?
I've told you everything I know.
We got the word that
there's still one bomb unexploded.
The mastermind behind it is said to
leave an equation to the police and Numeral Whiz.
Is this true?
Does the police have any other solutions
except to solve the problem?
Where did you hear that?
The news has been spread online.
BBS, Tieba and Wechat groups.
Guys,
we will concentrate all the efforts
to ensure public security.
We hope the media plays its due role
in reassuring the public
and avoiding panic.
Thank you for your support.
Captain. Captain. Captain.
Captain Sun.
Captain Sun. Captain Sun.
I'm Chen Zheng's wife.
I read the news on the Internet.
Chen Zheng can't work out the problem.
Is the problem available online?
Chen Zheng and I ever
tried to solve this problem from Alan Turing in college.
Our professor tried to solve it by gathering geniuses of the whole school,
but failed.
Chen Zheng.
What are you doing here?
Do you have any clue about it?
No.
Only a genius can work it out.
Someone can have a try.
Who?
Chen Mo.
Chen Mo?
Who's Chen Mo?
My brother.
Guo,
I need you to go to the detention center and fetch Ding Qiang.
We have to set him free if there’s no other way out.
We mustn't let the third bomb explode.
OK.
Why doesn't he answer the phone?
Chen Zheng graduated from a famous university.
Even he can't solve that problem.
Can your brother, a high school graduate, work it out?
His brother is the real math genius.
After the gaokao,
three of us were all admitted to colleges.
He got the highest score among us.
Then why didn't he go to college?
[In 1995]
I...
can't do heavy work any more.
One of you have to
help me operate the repair shop,
to keep the other one in college.
Let's draw straws.
Here are two pieces of paper.
One reads "up", one reads "down".
Up or down, it's all your fate.
Take it.
Down.
You don't have to.
He takes "down". You'll surely take "up".
It's unfair.
I got higher scores than him!
Brother!
Chen Mo!
Brother!
Who's there?
It's me. Guixiang.
Get up now. It's an emergency.
Coming.
Why is he taking so long?
He broke his legs last month.
Stop!
Brother.
What happened?
Mr. Chen Mo,
I'm sorry to bother you so late.
I'm Sun Fangnan of the criminal police.
We need your help with something urgent.
Captain Sun.
Captain Sun is coming.
Captain Sun. Captain Sun.
Give us two minutes for an interview. Captain.
Captain Sun, say something.
Please say something, Captain.
Ladies and gentlemen, as netizens speculated,
the police has brought in an expert to join them.
He seems to be a man with disabilities.
Stay tuned. We will continue to follow up.
A plus b equals one.
So a plus b plus c equals one plus c.
Mr. Chen, Mr. Chen.
Brother.
How long do we have?
Twenty minutes.
A problem Alan Turing failed to solve all his life.
You want me to solve it in 20 minutes.
Is it beyond hope?
I'll give it a try.
Okay, have a try.
I have a condition.
Please.
Get all your people over here and watch me work it out.
Won't the crowds bother you?
When the actor performs on the stage,
the more the audience,
the better the actor performs.
I love to be surrounded.
I need a timer.
I like the feeling of being chased.
If a wolf is chasing behind you,
you will be amazed at the speed you run.
Okay, we don't have much time.
Guo, get a timer.
Okay.
There is no need of that.
Guixiang can do this job.
Do you remember when I raced Chen Zheng
and you did the timekeeping aside?
Ten, nine,
eight, seven,
six, five,
four, three,
two, one.
Oh, I can't. I can't.
There's no problem for me to outpace you by 5 meters.
You win.
You win. You win.
My sweat is more than his, okay?
Really? Then do it by yourself.
You're partial to him.
I went to the restroom.
Do your best.
Time is yours.
Eighteen minutes fifty-nine seconds.
Fifty-eight.
Fifty-seven.
Fifty-six.
Fifty-five.
Fifty-four.
Fifty-three.
Fifty-two.
Fifty-one.
Fifty.
Forty-nine.
Forty-eight.
Forty-seven.
Forty-six.
Forty-five.
Forty-four.
Forty-three.
Forty-two.
Thirty-nine.
Thirty-eight.
Thirty-seven.
Twenty-six.
Twenty-five.
Twenty-four.
Twenty-three.
Fifty-five.
Fifty-four.
Fifty-three.
Fifty-two.
Forty-nine.
Forty-eight.
Forty-seven.
Forty-six.
Forty-five.
Forty-four.
Forty-three.
Forty-two.
I heard there is a bomb. Is this true?
Such a person
who dares to place bombs in the city
is really an inhuman monster!
If let me catch this person,
I must make him dead.
You check over there.
OK.
Fifty-two.
Fifty-one.
Fifty.
Forty-nine.
Forty-eight.
Forty-seven.
Forty-six.
Forty-five.
Forty-four.
Forty-three.
Forty-two.
Forty-one.
Forty.
Thirty-nine.
Thirty-eight.
Thirty-seven.
Thirty-six.
Thirty-five.
Thirty-four.
Thirty-three.
Clock's ticking.
He's trembling.
We only got less than five minutes.
Even if the equation got solved
and we located the bomb,
we probably wouldn't have time for bomb-disposal.
Liu, how's it going?
We've narrowed it down to the street.
Okay.
Solved!
We got the result.
It got solved.
2.2013.
That's it.
I solved it! I solved it!
Where's the bomb?
Ding Ruobing!
Where's the bomb?
Time's running out, only two minutes left.
Ding Ruobing! I'm warning you!
You've been defeated!
Don't you dare to play with me!
Or you'll be dead!
[The closet of Criminal Police's office]
Go check, be quick!
Yes, sir!
Let's help!
Brother! The bomb is here!
Take him away, hurry!
Okay.
Step back, everybody!
Step back! Step back!
Stop taking photos! Step back!
Hurry!
Stop filming! Step back!
Hurry! Hurry!
Found it!
Go away!
Ladies and Gentlemen,
I'm the reporter, Mengmeng.
Now bring you the exclusive news.
Ladies and Gentlemen,
it's said that the Numeral Whiz's twin brother
is the genius who solved the equation Flower Demon set up.
There's always smarter people.
Brother, you're a real genius.
You've solved the world-class problem.
My time spent in university is a total waste.
That's no use.
You've got it all.
I'm just a disable person.
Sorry, brother.
That night...
Hello.
Why are you still not home?
I just exited the highway
and found that my money got deducted twice from ETC.
Was it system failure?
No.
Someone put a self-made money-deducting machine on a telegraph pole
that is 100 meters away from the toll gate.
Deduction will be triggered
every time a car passes by.
It's hard to get noticed for such a small amount.
Thousands of cars pass by here everyday.
The profit number cannot be underestimated.
Can't you call the police to look into it?
It's probably my brother who made this machine.
He's the only one
that's capable of building this kind of malicious thing in this city.
He spent six years in jail.
Is he still unrepentant?
Stop!
The Internet works now.
Good.
Will Ding Ruobing
disappear from now?
No way!
I won't let her!
I'll do anything to find her.
Don't you feel like
we're living in the Hollywood Movies.
I feel like something's off.
She put the bomb
to get her father, Ding Qiang, out.
But it seems like she's more interested in solving the equation
than saving her father.
What's more interesting is,
the bomb is here in the office.
Hello.
What?
What happened?
Ding Ruobing's dead.
You sure? Ding Ruobing, the daughter of Ding Qiang?
Yes.
I know him well because we live across the hall.
How did you find the body?
We've been searching Ding Qiang's house.
Then we discovered the basement.
We found the room locked with a combination lock.
We decoded it and went inside.
Then we found this freezer.
How long has the person been dead?
At least one month.
Ding Ruobing died a month ago.
Then,
who's the one pretended to be DingRuobing
and committed the crime?
Ding Qiang.
Is the dead woman in your basement freezer
your daughter Ding Ruobing?
Yes.
How did she die?
Overdose.
Ding Qiang, you monster!
How could you let her follow your path?
She was so young.
How could you do that?
I had no idea.
She learned it behind my back.
It's my fault.
Why did you put her in the freezer?
She's the only family I got
in this whole world.
I didn't want to cremate her.
Why didn't you tell the truth this morning?
If you have the chance to leave,
will you refuse it?
Who else knows
the death of your daughter?
Only my fellow inmate.
The day it happened,
he was at my place.
What's his name?
Promise me one thing,
then I'll tell you.
Go ahead.
I'm stuck here forever.
Please bury my daughter for me.
Will do.
But not until the matter is thoroughly investigated.
Okay.
I trust you.
I think the man who sent me in is Chen Zheng.
His twin brother,
Chen Mo,
was in jail with me.
Brother, you did great.
Solving problems must be tiring.
Get some rest.
Get me some water.
Okay.
I'm where I am
all because of you.
I'm going to take back what was mine.
How did it go?
The IP address is
21, Wenchang Rd., Songhua Distrct, Pingkang City.
It's the computer maintenance store you mentioned.
It's him.
No wonder
the bomb is in the office.
He must have entered the office
with the bomb.
Then put it on the cabinet
when we were distracted.
He's disabled.
The cabinet is so high.
How did he do that?
Unless,
he's pretending to be disabled.
Solved!
No.
Although flower demon's voice has been processed,
it's proved to be
a woman's voice.
There's one possibility.
He edited the voice.
The black dragon says: "Shut up!
Listen.
I'll be back for vengeance!"
Lola claps her hands and says:
"Okay, I'll wait.
But I'm afraid you won't be alive by then."
Today I really feels like
living in a Hollywood movie.
Hey, Chen Zheng.
It's me.
Where are you now?
I'm eating at home.
Is Chen Mo there with you?
No.
I dropped him off at the computer maintenance store.
What happened?
He's Flower Demon.
You sure?
Yes.
Our cyber security department
has cracked his IP address.
Where are you?
On my way to his place.
I'll be there.
Please eat.
Wait.
I'll go with you.
No,
you stay and have your dinner.
We owe Chen Mo.
Is there the letter for Mei Guixiang?
No.
Haven't you got the reply from Chen Mo, have you?
Do you know why he didn't reply for half a year?
Since my father passed away,
he had made fake IC cards in Guangzhou
in order to support his young brother's study.
Then he got arrested.
I knew it later.
It's us who should say sorry to him.
He never blames us.
He feels happy for us as long as we're happy.
The suspect has got a bomb.
Be careful!
Yes, sir.
It's unexpected that
Flower Demon is your elder brother.
I didn't expect it either.
Where did he learn the knowledge of network
and computer maintenance?
We have so many cyber czars in the Criminal Police Unit,
but none is his competitor.
He is self-educated.
What a genius!
He is talented in acting too.
He was so obsessed with solving
the question he set by himself,
and I couldn't find any hole.
I'm afraid he was indeed solving the question then.
He strapped the bomb to his waist and set a timer.
It will explode if he can't solve it.
I enjoy being chased.
If there is a wolf running behind you,
you've no idea how fast you can run.
Mr Sun.
Block the area and act as the occasion demands.
Yes, sir.
You guys go and pick up the equipment.
Others, follow me.
Was Chen Mo imprisoned?
Yes.
Why?
He had designed a software
which could withdraw money from the depositors' bankbooks.
I informed on him.
He was sentenced to prison for six years.
How did you find the thing?
I'm his biological brother,
so he had thought I would have helped him.
He had planned to save the withdrawn cash in my place.
But you informed on him.
Yes.
Six years.
We haven't been jailed,
so we can't feel what he's experienced.
Six years ago,
I haven't been transferred here.
He has been taken away everything
that should have belonged to him by his young brother.
College,
love,
and
his legs.
The kidney and seminiferous ducts are severely wounded.
I'm afraid you can't have a baby any more.
So the elder brother is a math genius,
while the young brother becomes the well-known Numeral Whiz.
The elder brother directs the whole show
in order to revenge.
I guess so.
So do I.
Hurry, hurry!
Mr Sun, the true identity of Chen Zheng
is Chen Mo.
What?
The Chen Zheng who's outside is Chen Mo.
You mean the elder brother pretends to be the young brother?
Others can't tell the difference between them,
but I can, even just from the smell of them.
Where are you?
We owe Chen Mo.
Hurry to break in and look for Chen Zheng.
Yes, sir.
The suspect has got a bomb.
Be careful!
Yes, sir.
Bomb!
Chen Zheng!
Go! See you.
[September, 1995.]
People always say that
bad persons don't realize how evil they are.
But I don't think so.
For my whole life,
I'm ruined by my own wisdom.
So I'm ending with comedown
and failure.
Your elder brother is similar to me.
He is clever enough,
but lacks mercy.
If a person isn't kind-hearted,
he will do more evils as his power grows.
So,
I choose you to go to college.
[July, 1995.]
Dad, you're sick,
but we have to move on.
I think I should go to college,
and Chen Zheng should stay home to look after the repair shop.
Why?
Because,
because I got higher scores.
Look at him who acts like an idiot,
so do you think he can succeed?
It's unnecessary for you to pick.
Your elder brother got 'Down', so it must be 'Up' for you.
It's unfair!
I got higher scores than him!
Brother.
Chen Mo.
Dad.
See for yourself.
[Down].
Study hard in the college,
and be a useful person to the society.