Original subtitles

Two months! Five bodies!

Why don't you say anything?

We don't have any clues. We don't know the motive.

Everything is different. Age, gender, social standing.

The only thing in common is that they were killed in deserted places.

Six bodies.

It's a she.

-She? -Yes.

You are charged with a murder.

Article 115, Part 2, ten to life.

You don't even know whose murder you charge me with.

Shvabrina? She's a genius.

She proved a subcase off the Cauchy theorem when she was 17.

It's as if you became a marshal at 17.

There are no marshals in the police.

That's my point.

People like her are born once in a century.

Maybe a millennium.

This is the solution. It's an outlier.

This date doesn't fit in with the murder function.

Someone else did it.

Hey! Get down! Don't move!

There is no doubt he killed Inin.

But he has an alibi for the other murders.

The brutality of the murders points to compensatory aggression.

Look. Here we have two blows.

Here there is more.

When something triggers them, their bloodlust gets out of control.

The math teacher predicted it would be today.

There was another murder yesterday. Just like you predicted.

Fortune-tellers predict. I'm a mathematician.

Could you do your calculations one more time?

He might kill someone else.

I've finished the calculations. Give this to him later. Goodbye.

Yes.

Anna Nikolayevna, it's Vershinin. Viktor's dad.

He is okay… and I wanted to apologize.

I'm glad Viktor is okay.

I was going to ask about your calculations.

Well, this is--

Anna Nikolayevna.

Anna Nikolayevna, are you okay?

Anna Nikolayevna, answer me.

You're a psycho!

Where are you drugging me?

To the bushes. I'm a psycho!

Look.

It's beautiful.

Over there!

THE MOP

EPISODE 2

How is she?

A grave concussion, but she is out of danger.

-Can we… -No. She needs rest.

Please.

Five minutes.

Dad, please don't be mad.

I'm not mad.

I mean, at the Mop.

You know what, your Mop…

-Yes. -She's asleep.

The doc says she is in no danger.

You need brains to have a concussion.

So hers is a grave one.

Okay. Talk to you later.

I'm not mad at you or your Mop.

Go back to sleep.

Well, your place or mine?

Nobody loves me.

When this line becomes straight, everyone will love you.

-Are you okay? -Did you see the person who hit you?

No to both questions.

So you didn't see anything?

Should I call the doctor? Can we do something for you?

Yes. Get out. Both of you.

Why?

Because I need to change.

What do you mean, stop her? Do you want me to cuff her?

Okay. Bye.

-Anna Nikolayevna. Where are you going? -Home.

-We'll drive you. -Thank you. I'll get a cab.

I think they hit her on the head real bad.

I agree. She was always like this.

Explain two things to me.

What are these numbers and where is Goncharenko?

I'm sorry.

Goncharenko is here.

And these are calculations for the next attack date

made by Shvabrina.

The Mop has predicted the next murder.

It's not a prediction, it's a calculation.

She is a mathematician, not a psychic.What the…

The day after tomorrow.

But the attack has already taken place. Why was it your Mop?

She must have made a mistake. Or it was an accident.

There is no such thing as an accident. That's what she says.

All numbers, even random ones, fall under distributions.

-What distributions? -These ones.

Math!

Don't look at it too long. It's contagious.

What was she doing in the park? Did she see the attacker?

She says she didn't.

She doesn't talk much.

Family? Friends?

She has no family. Her only friend is Galois.

Galois?

Her fish. I don't think it's very talkative, either.

Okay.

She's the only surviving victim.

Being a victim is the best alibi.

Even if she isn't the killer, she might have been involved.

Yes. I'd rather believe this than these numbers.

This can be an accident.

There isn't such thing.

No. I couldn't have made a mistake.

No, no, no. I couldn't have made a mistake.

This is correct. This is correct.

This is correct.

No. I couldn't have made a mistake.

Hello.

-Is this a bad time? -Yes.

Still, Anna Nikolayevna, I need to ask you a very…

Anna Nikolayevna, I'm sorry, I need to…

You have five minutes. I need to go to school.

I see. Let's get straight to the point.

You didn't see the attacker, right?

I see.

And, of course, you didn't hear anything.

There was a lot of noise. The fireworks, the people.

These people is probably what saved you.

Maybe.

Anna Nikolayevna, are you okay?

-Do you have any pills for the headache? -As a matter of fact, I do.

And you say accidents don't exist. Here.

It's not an accident. You do have a head, too.

And I need to learn how to use it. Right?

Thanks.

You're welcome.

These calculations of yours…

My calculations are correct. I went over them again.

-Why, then… -This question isn't for me.

My perception of the occurrences doesn't change the fact

that the occurrences occur.

So something has changed the culprit's behavior.

That's right.

Something changed the culprit's function.

Let's denote it by X.

-Something related to him. -Or to me.

Now I'm one of the variables.

Somewhere around here.

-Let me get it fixed. -Okay.

It's eight already.

This makes sense.

Good luck. Bye.

And Zurabov says, "There is no such thing as an accident".

My grandma said only marriages can happen by accident.

A lover has to be reliable.

I am reliable. I swear.

Anyway…

when the Mop came to the station yesterday,

she told the security that she had some important evidence.

-Against the serial killer, I mean. -So?

So she said it in front of everyone in the crowded reception room.

If the culprit was there at that moment, he could have decided to kill the Mop.

Yes. That's why she says this attack was out of his schedule.

If the security believed her, so did the killer.

What if Petrovich is the killer?

The one who always says "We lost a great country".

Mitia, we need the CCTV video.

-I'm sure it's Petrovich. -Mitia.

I'll shut up. I'll go get the video.

Petrovich isn't there.

Twelve people could have heard the Mop.

We need to identify them all.

It was at 8:40 p.m.

The Mop was attacked between 10:10 and 10:20 p.m.

She said the fireworks were still going off.

We need to find out what each of them was doing at that time.

Get to it.

You wanted to spend more time with me.

Be careful with what you wish.

He looks like a lawyer.

But he didn't check in at the reception.

He was waiting for someone. Find out whom.

This is our cleaning service.

They are supposed to clock in and off.

They do.

We have for cleaners working every day.

This is one of the four.

One of the two. They work in pairs.

Vitia Tregubov.

I worked with him last year.

I'll deal with him.

Thanks.

He will be number six.

Number six. And there are six more left.

Well… Six is already 60%.

Let's get to work.

Funny.

Anna Nikolayevna, what happens if you break one of the Ten Commandments?

Wait. Did you eat?

No.

Too bad.

Anna Nikolayevna, so what will happen?

There will be nine left.

Come in.

Don't take off your shoes.

Wait.

-Anna Nikolayevna, are you okay? -It doesn't matter.

-Why do you need an empty fish tank? -It doesn't matter.

What does matter?

Mathematics proves it doesn't matter.

What doesn't matter?

Everything but mathematics.

So…

Great.

Let's do some mathematics.

Okay.

Lawyer Vishnevskiy.

Yes, I get it.

Moreover, he has an alibi. Vershinin has verified it.

So he's out.

Vershinin said we could go home.

Maybe we should…

He's out.

Hello. Hi, Dad.

I've just been at the M… Anna Nikolayevna's.

It doesn't matter.

She says it doesn't matter.

Anyway, someone was in her apartment.

No.They were gone when we came in.

But they…

Tidied up her apartment.

Yes. And she freaked out.

Well… I think she freaked out.

Did you?

Anna Nikolayevna.

Why didn't you call?

I don't have your number.

Anna Nikolayevna, nobody is intruding on your privacy…

Really? You have incorrect information.

She's with me.

The expert. We need to check surfaces…

That's why I didn't call you. I don't need distractions.

We are trying to help you.

-You're in the way. -We are always in someone's way.

Well, Katia?

It's sterile. No foreign fingerprints.

Okay.

Freezing. That's how trauma works.

Hunted animals also freeze.

They play dead to be left alone.

I also studied math.

At school, at the academy.

I only got to use it once, though.

I dropped my keys into the toilet, and I had to make this thing out of wire.

A toilet brush?

No, I needed to make this thing, like, a hook. A sign.

A sign.

-An integral? -That's right.

No. This isn't right.

Let's try to fiddle with this diagram.

The serial killer's crimes fit into this function.

Of course.

So, in mathematics, we call this…

Just a sec.

The Devil's staircase.

The number of murders grows exponentially,

and the gaps between them become shorter.

So the killer, like a drug addict, is trying to recreate his first euphoria.

But why the intervals become shorter, and the crimes – more brutal?

That's what will happen if we don't stop him.

Yes?

He could just kill you.

Why do all this? What is he trying to say?

You know, as a victim, I'm fine with this.

Every psycho sticks to a certain logic.

Some think I'm a psycho.

My son wanted me to say hi and ask how you were doing.

I'm fine. The calculations show

that the next murder will take place in two days.

No, even less that that now.

With probability 78.3%.

Seventy eight?

-Is it too low for you? -No.

Do you buy lottery tickets?

Of course. I want to win a motorbike.

Your chances are roughly zero.

Thank you.

I went to school, too.

Let's proceed.

Can you give me a ride?

No.

Thank you.

You don't understand.

They haven't send bodyguards for Shvabrina yet,

and the killer might come back.

So I'm staying here.

Goncharenko will relieve me in the morning. I already called him.

I see.

Well… Goodbye, Nikolay Vladimirovich.

Bye.

-Bye. -Good luck.

Hi.

"I relieve you, I stand relieved"?

-Thanks. -How long do I have to be here?

Listen, she has to be at school by ten.

I hope by that time I'll have convinced Zurabov,

and he'll have convinced the brass.

Bye. Thanks.

Dad, you're a cop, right?

So you fight the evil for the sake of all good, right?

So why did you kill Galois?

Whom?

He was a great mathematician. Evaristo Galois.

Also, Anna Nikolayevna had a goldfish with that name.

It died because of you.

You see, son…

I arrested Anna Nikolayevna because I had reasons.

As soon as I realized she was innocent, I let her go.

There are times in your life when you, and only you,

can make a choice,

and nobody knows what's right.

That's why no one has solved it.

How much did you pay for the weenies?

I don't remember. They were on discount.

Two packages…

For the price of one?

Decent food.

It's mark-down.

What?

I'm saying they've expired.

I read online that if you eat it on the first day you'll be fine.

It's okay.

Explain two things. What is this picture and where is Goncharenko.

Goncharenko is on a mission. About these photos.

She came to the station at 8:40 p.m.

and said she had important information regarding the serial killer.

And?

These are the twelve people who could have heard her.

And?

She was attacked 90 minutes later.

And?

I believe the attacker was one of those twelve.

He waited for Shvabrina to come out of the station,

followed her, and tried to kill her.

Fortunately, he was spooked by a couple.

He only had time to deliver one blow, which didn't prove fatal.

And?

Yesterday someone broke into Shvabrina's apartment and tidied it up.

-What? -He tidied it up.

Cleaned everything, wiped the dust, organized everything.

He didn't kill her, though?

She wasn't at home.

Zurabov.

She's here.

Send her up.

No, not my office. Room 10.

Anna Nikolayevna, one more time: it's our officer.

Lieutenant Goncharenko.

He was protecting you. There is no reason to be worried.

I'm not. But if I realized immediately he was a cop, so will the killer.

You can't catch him like this.

Why don't you help us, Anna Nikolayevna?

Take a close look.

Had you seen any of these people before you came here?

We think that one of them is the killer.

He might have heard you saying you had evidence.

Maybe it's the X factor.

No.

After leaving the station,

did you meet with someone, stop somewhere?

No. I went to the park. I needed to be alone.

It's a 3.5 km walk to the park.

Maybe you saw one of them at the park.

I don't remember.

You don't remember anything?

I remember.

I remember there were fireworks. Yes. Fireworks.

It isn't much help.

You don't understand.

These dots. Are they all crime scenes?

Yes.

No. It's impossible.

There are too many parameters to include

to calculate where every part falls,

but, knowing the coordinates of every impact point,

I can calculate the final point.

You can calculate the killer's address.

If you mean the exact address with the postal code, of course not.

But I can try to figure out the area. After the classes. I'm already late.

I'll need all the information.

The exact place and time, the number of blows.

Also, let that girl stop by.

The one that knows about psychos' psychology.

Katia. Sosnovskaya.

You really think the serial killer is a cop?

Only five of them are police officers.

These two were summoned as witnesses.

This one is a lawyer. This one a janitor.

These two haven't been identified.

So identify them!

We'll send a patrol to your math teacher.

Do you really believe in her numbers?

With probability of 78.3%

What?

Is it Wednesday today?

It is.

Today is the lottery draw. Have you bought a ticket?

You can't win if you don't buy a ticket.

I've been buying them for 15 years.

How many times did you win?

See? Do you know why?

The probability of winning the lottery is…

almost one to a million.

And here we have 73.8%.

See?

Yes, I remember.

She said something about evidence in the serial killer case,

so I told the guard to let her in.

I didn't want to let her in. Because it's not allowed.

My job is mopping the floor.

Yes. It's me. I was waiting for captain Tregubov.

I got a subpoena. Do you think I came on my own volition?

What do you have?

We have identified everyone. We are checking everyone's alibis.

Update me as soon as you have something.

Yes, sir.

How do I know what happened next? I went home.

Well, she came out in ten minutes. That's all I know.

And then? Then I went to mop the floors.

When Tregubov came, we went to a pub.

The Terem round the corner. Do you know it?

The detective was grilling me for 30 minutes, and then I left.

What do you mean who can confirm it?

Am I a suspect?

My shift ends at 6 a.m. Then Petrovich came.

We all clock in when we come in.

I left at 10:45 p.m. with everybody else.

We had a good time. We said our goodbyes at midnight.

I went to the park. Had some beer. It's a holiday, after all.

Only five have alibis that check out.

The janitor, the witness, Tregubov, the lawyer…

-The guard. -Right.

Go on with the interviews. We're going to Anna Nikolayevna.

Let's go, Katia.

I'll have a coffee and go talk to the witnesses.

Here are the places and the dates.

Interestingly, our guy never attacked twice in the same spot.

He is smart and tries to avoid a pattern.

Katia, serial killers don't kill where they live.

Thank you. I have enough data.

Yes. It's hard to live in harmony with chaos.

What?

It's not about the external neatness but the chaos inside his head.

He is trying to impose it to the world. His rules, his laws.

And when people don't abide his laws, he kills.

The law of small numbers.

What?

The law of small numbers.

What is it?

The law of small numbers?

Yes.

No. You don't need to explain. I won't understand anyway.

Why? To put it simple, a person always can justify their actions.

-I see. -Okay. If…

-When will we have the result? -Eight. Zero, three.

Anna Nikolayevna.

Okay. That's it. I'll write down my number for her.

Goodbye.

Goodbye.

We have checked everyone. Only four don't have an alibi.

So. Number one. Ivan Shvedov.

A plumber, 42. Single, lives alone.

Served 18 months for robbery when he was 20.

No convictions after that.

What was he doing at the station?

Nothing important. Filing a complaint against his neighbor.

Go on.

Number two. Senior lieutenant Vernik.

I know him.

Do you know he is under investigation in two cases of police brutality?

I do now. Who else?

Number three. Stepan Kashin, 18. Pizza boy.

Major Yershov doesn't eat at our cafeteria.

Go on.

Now, number four. Yevgeniy Sidorchuk, entrepreneur, 39.

Diagnosed with schizophrenia, in follow-up with a psychiatrist.

Anna Nikolayevna.

Anna Nikolayevna, your door was open.

Vitia. What are you doing here?

-You told me to come. -Oh, right.

So I'm here. Here is my notebook.

It's my dad's number. Did you agree to help him?

No. No, it's just…

It's just that this is a rather interesting problem.

A very interesting problem.

Besides, you know I don't like people to intrude on my privacy.

I'd better go, then?

Yes. Leave the answer. I'll check it later.

Close the door on your way out.

We have all these people under surveillance.

First of all, Sidorchuk.

If we believe Shvabrina, tomorrow he is going to commit another murder.

With probability of 78.3%.

We have to believe her.

-Are we ready for the takedown? -We are.

-Yes? -Come.

What happened?

I have finished the calculation.

Why don't you sleep at night?

Well… Tell me, how?

Well… It's like when mathematicians find black holes

by how they affect other objects.

Black holes.

No one ever gave serial killers such a poetic man.

Mathematics is like poetry but better.

Imagine, I someone manages to solve the P vs NP problem,

they would be able to analyze the 37 Shakespeare's plays

and write a 38th.

Right. But something in your poem doesn't add up.

What do you mean?

There are around 1,500 people leaving in this area. Roughly.

We have four suspects.

None of them lives here.

So you suspect the wrong people. That's the mistake.

I think my mistake is trusting your numbers.

You know?

I'm sure the killer knows nothing about your calculations.

Moreover, he knows nothing about math. Just like me.

You're right about this.

Remember you talked about the probability? That it's not 100%.

So… From now on we'll handle it without you or your poetry.

Give this to Viktor.

Thank you.

Good morning.

Didn't you go home?

This morning has just became very busy.

Shvabrina did her calculations. She figured out the area.

None of the four suspects lives there.

They are already under our surveillance.

We're fudging it.

But these eight have an alibi.

We need to double-check. One more time.

Can we… skip this part?

NEVER FUDGE THE ANSWER

I'm an idiot.

Goddamned Mop!

We are idiots. Look.

We took for face value

the time people left the building given by the computer at the entrance.

Now, look at this.

Yuliya Lupyr. She clocked off two cards.

The second one belongs to Igor Travkin, and he never let the building.

At least not through the front exit.

He could have left through another door, and much earlier.

There are no grates on the ground floor men's room windows.

And he lives in that area.

Good job. Thanks.

Here.

I knew it would end up like this.

Why did you agree to clock off Travkin?

He is my brother.

Half-brother. We have different fathers.

Did he tell you why he needed this?

No, but…

Did you know?

No, but…

But what?

Father used to say that the only difference between a human and an animal

was that humans produced garbage.

He'd beat us half to death, especially Igor.

-Yes? -Lupyr is Travkin's half-sister.

She says their father was a neat freak.

He'd beat up her and her brother for some dust on the window sill.

She says she thought it would end with their father's death.

But a few months ago Travkin…

It's definitely Travkin. But I was too late. He left.

Ask where he could go.

I know where he went. Probably to the Mop.

He'll want to finish what he started.

Our company gave us a new boss, and it was hell.

He'd call us every ten days and gave us hell for every small thing.

That's what triggered him.

Igor…

I was afraid of him.

He started looking a lot like his father.

Yes.

Captain Vershinin.

Put me through to the officer who was assigned Shvabrina's protection.

It's urgent.

Five, Five, Dispatch!

One day he attacked a man in the park

who missed the bin with his cigarette butt.

Five, Five, answer Dispatch!

Why don't you answer?

Answer immediately!

What do you mean he doesn't answer?

What do you mean he doesn't answer?

Humans differ from animals

only in that they produce garbage.

You were absolutely right. Your equation…

Formula. In mathematics, it's called a formula.

All right, a formula.

You were right, and I was wrong.

-Anna Nikolayevna, I hope you and I… -Will never see each other again.