Original subtitles

Dad, you've just bought an aluminum ladder. Seven rungs.

Also, a mop. Self-wringing, with telescopic handle.

She is trying to tell us something.

A set of birch besoms and caps for sauna.

Sauna Alley…

The place where she is being held.

Forty-two items.

-House number. -That's right.

What else is there?

A mop.

-Hello. -Hello. Delivery.

Please sign for it. Here.

Oak bath besoms, 42 pieces.

Sets for sauna, 42 pieces.

I'm sorry, what do you need 42 sauna sets for?

Well…

It just happened.

I'd never have thought that the Mop's math will prove so useful.

Imagine if it wasn't Sauna Alley but Pottery Alley.

Or Manure Alley. 42 trucks of manure.

I didn't have enough money on my account.

She would have taken out a loan for you.

Probably.

Hello?

What are you talking about?

How can one save $1,000,000 in a year?

You'd need to deposit $2740 every day.

What about Fatum? Any news?

Nope.

I was worried for Ania, to tell you the truth.

She seems normal.

Well, as normal as she can be.

Right. Mathematics is her drug of choice.

While she was in there… It was pretty bad.

As soon as she got a problem, everything went back to normal.

It was good.

She even told me a joke. Well, not a joke, an anecdote.

Like, two mathematicians meet, and one tells the other

something about substance and form, and the other guys says,

like, you need to have substance to keep you in form.

-It was funny. -It is funny.

Anyway, you should forbid him to gamble at these online casinos,

or better yet, find another man who has a million,

preferably not just one.

I mean not just one million.

Maybe not one man, either. You're right.

Katia and I are going to buy an apartment.

We need more room with the baby on the way.

If the bank approves mortgage, of course.

Maybe the general could help.

He offered but I said no.

Now I think I shouldn't have.

Katia's father is a general, and the bank won't give me anything.

Yes, with our salaries…

What are you thinking about?

Anyway, guys should think about you, not you about them.

About guys, of course.

There were these three guys…

They worked out a mathematical model

describing the complex behavior of multiple systems.

It seems that the sand is simply pouring down,

counting the time.

But at any moment,

which is called critical state of a system,

any of them can cause an avalanche and ruin everything.

THE MOP 2

Come in.

You will definitely like this apartment.

Two levels.

Three big rooms, a lot of space,

the renovations.

Besides, I'm the only one selling it. Exclusive rights, so to say.

The owners have been in Bali for three months.

They left me the keys to take care of the sale.

Look.

He's gorgeous.

Who's gorgeous?

Come to me.

You're so handsome.

Weird.

A cat isn't supposed to be here.

The owners are allergic.

I've known them over ten years.

-God bless you. -Thank you. I think I'm allergic, too.

Maybe he came in while you were showing the apartment.

Sure. And he brought his bowls with him.

It's a criminal offence, by the way. Article 139, illegal entry.

Come on, tell me.

Where did you come from, handsome?

Hi.

Hey!

We'll need to change the locks.

Milk.

Tin cans.

Beef with carrots. Is it for you?

I don't understand.

Ania, I don't remember the last time I was just lying like this doing nothing.

One, two, three.

-One, two… -Ania, what are you doing?

It's salsa, my favorite dance.

Let me show you. It's easy.

Look. Quick, quick, slow.

Quick, quick, quick, while Vitia isn't here.

Come here.

Why are you laughing?

It's you.

Mitia.

-Where is mine? -In the kitchen.

Katia.

-Yes? -Yes.

What happened?

Yes, yes, I'm listening.

Great. Quiet neighborhood.

So you saw the apartment?

-What cat? -What does a cat have to do with it?

Where did it come from, then?

Yes, I understand.

No, I don't understand.

Who said that? The cat?

Who ran away? The man or the cat?

Who wrote the numbers? The cat?

I don't understand.

All right.

We're coming.

My day off…

So much for lying down… Doing nothing.

He won't eat anything.

He must be in distress.

I'm in distress.

The apartment owners will be, too, as soon as I get to them.

-Hi. -Hi. It is a nice neighborhood.

The apartment is nice, too. What do you have?

-Hi. -Hi.

Here.

-May I? -Yes.

-Hi. -Hi.

You were the only one who had the keys, right?

When was the last time you were here?

Over a month ago.

There was no cat and no papers.

These are graph trees.

What?

Decision-making trees.

Probably naïve Bayes a classifier.

A primitive but very stable model.

These are game results, bets, bet dynamics.

It's…

-Jab – is it something about boxing? -Yes.

So is a round.

By the way, I saw that fight.

Ilyasov knocked out Trukhanov with a jab.

-Can I take it with me? -Yes.

Looks like he was placing bets on boxing matches with bookies.

Maybe these guys?

I can't frigging believe it.

Yes.

Hi.

Hi.

Hi.

Luckily, no victims.

That's because there was no one at the office.

And you are?

Anton Sverdin, the owner.

Or maybe I should say the victim.

How did you find out?

It has been twenty minutes since the explosion.

How? I saw it.

We were having an office party at the Kovcheg nearby.

I went outside for a smoke and saw five years of my life going up in smoke.

What were you celebrating?

The company's fifth anniversary.

A great way to celebrate.

Is that why the office was empty?

Yes. Not everyone works here, though.

We have 15 branches across the city. This was the head office.

Do you suspect anyone?

Is there anything you can say?

Say what? Thank God for taking only the money.

Right.

TRUKHANOV VS ILYASOV

Shall we order something?

Pizza or something?

Nope.

Why?

Here.

Now I see why.

What do you see?

Why it's a nope.

This is for you to sharpen your claws.

We don't have money for pizza anymore.

This is where you'll be going potty.

Don't forget to put the seat down.

Why? You trained me to do it.

Stewed turkey with parsnip and carrots.

And I haven't even got my pizza.

Okay. We never lived well – why start now?

What does Zurabov say?

About the cat?

About your salary.

He says I should be patient.

-So be patient. -I will be.

-Please do. -I will be.

-Please do. -I will…

My darling.

You love me, after all.

Good morning.

-Morning. -Vershinin!

What about that explosion at the betting agency?

The cat.

I mean, he lives with us now.

He even sleeps with us.

I had at least five calls. An explosion in the downtown.

Thank God there are no victims.

Do you know what the newspapers say?

Why read this nonsense, Pavel Nikolayevich?

Okay. Enough chatting.

-Report. -There is not much to report.

The bomb is a homemade one. The experts are studying it as we speak.

It was controlled remotely. We don't know yet who planted it or when.

There were cameras, but the explosion destroyed the server room,

and the experts don't think they will be able to recover anything.

Any suggestions as to who might have wanted it?

Judging by the social networks,

thousands of people wanted to blow up the office every day.

Mostly wives and children of those who lost their money there.

And it was tens of thousands of people every day.

Is it even legal, this betting business?

Well…

-Borderline legal. -Yes.

What does the owner say? Sverdin or whatever.

He says thank God for taking only the money.

What is it?

The cat.

Is that why Sosnovskaya wasn't at work today?

Pavel Nikolayevich, it's her official day off.

-What about the cat's owner? -Former owner.

We collected fingerprints at the apartment.

There is a lot, but they aren't in the database.

The cat is silent.

The new cat owner made a composite of the old cat owner.

Also no results so far.

Show this composite on TV. I'll make arrangements.

Okay.

-What is it? -Excuse me.

Another cat?

Almost. Ania found something in these figures.

Anna Nikolayevna.

Don't drag it out.

Ania, what was it about the trees?

It's not just trees. It's a random forest.

-What? -A random forest.

The cat would explain it better.

Speaking about the cat, did you go to the bank?

I did.

Filling out a form for the loan?

Yes. A million of stupid questions.

These stupid questions are a decision tree.

It's a mathematical description

of how our brain comes to one conclusion or another.

The bank, in your case.

It's very simple. Let me explain.

Look.

So, you want to get a mortgage.

Okay.

Right?

Mitia. The bank wants to know how responsible you are as a loan taker,

so they start analyzing.

What job you have,

how old you are, your salary,

your family situation.

What chronic disease you have etc.

Depending on your answer, you move up one branch or another.

I wonder if the bank lady who was torturing me knows about these trees.

The lady uses the decision-making self-learning algorithm

even if she doesn't know what it is.

Of course, if you have no permanent job or you are 97,

you will never reach this field.

Where does the cat come in?

If a knowledgeable person put up this list,

there would be a question about the cat. Somewhere here.

Having a cat means that you aren't afraid to take on responsibility

for your family and friends, so your chances to reach here increase.

Has Katia put you up to it?

No, it's mathematics. Katia called me, too, though.

Ania, I understand about the trees. Let's get to the forest.

The farther into the forest, the deeper the trees.

You're right about that. A random forest is a self-learning set

of tens of thousands decision trees,

able to predict complex events.

Like game results?

That's probably what this person was trying to do.

I'm not sure how well his system works because I don't have enough data.

All discs are password-protected.

Vitia is trying to hack them as we speak.

You are lucky. You have a cat living with you. I have a hacker.

Let's swap. Yours at least doesn't do the zoomies at night.

-Mine is doing the nasty. -Kolia.

Okay. Enough.

I will never believe that the match result can be predicted.

Especially in boxing, where one blow decides everything.

Believing isn't a mathematical notion.

That's not the problem.

I know nothing about these uppercuts and rounds,

and this is what it is based upon.

I can help you with this.

-Pavel Nikolayevich, this is for you. -Thank you, Tania.

Vlad Dayev, co-chairman of the East-West League.

We talked on the phone this morning.

We were waiting for you. Please sit down.

Vlad. He has information on Sverdin.

Not information, rather a suspicion.

We believe Sverdin is involved in fixed matches.

I'm sure he is.

The Ilyasov-Trukhanov fight was definitely rigged.

Proof?

I have no proof.

Actually, we believe we can get proof

by studying betting dynamics at the Sverdin agency.

Yes. We could take the data,

calculate the minimal covariations determinant,

and find the outliers.

To tell you the truth… I don't understand.

I suspected there will be something fishy there, though.

That's what I said.

After a long struggle,

we received a court order for data extraction.

We had been fighting with his lawyers for six months,

and today we received an official letter from Sverdin

that the data had been on the servers destroyed by the explosion.

So he probably set it up himself.

He had a 100% opportunity. Now we know the motive.

About the data on your servers.

Our experts say you should have had backups.

Of course we had them. But the explosion destroyed them, too.

Were they in the same room?

Of course.

We didn't know someone would plant a bomb there.

Why didn't you save them on the cloud?

Because it's risky.

But you could save them as encoded objects.

Of course.

But we'd have to change the app's architecture for this.

Also, coding and decoding is a tedious job.

Our expert told us you'd say that.

They also said you could make database dumps,

encode them through GPG,

and download files on the cloud via Open VPN,

having set up a firewall and blocked all external ports and protocols, of course.

You know what?

Tell your expert

I'd like to offer them a job and five times what you pay them.

-You won't like them. -Four times, then.

Is that expert of yours… the beautiful woman I saw here?

Yes. The Mop.

The Mop?

Anna Nikolayevna Shvabrina.

Do you and your expert really believe I would plant a bomb in my office?

We are working on all theories.

You know, you should probably talk to my lawyer.

Do you have any idea what losses my family has endured?

The problem isn't the premises or the equipment. It's peanuts.

All the branch offices are frozen,

because the online betting was being managed through our server.

I don't know how we're going to recover it by this Sunday.

-What is this Sunday? -What?

The Ilyasov-Trukhanov rematch, the fight of the season.

I'm sure he is trying to rig it again.

-Why? -Ilyasov was my best fighter.

He switched coaches before the match and took a dive in the third round.

Ilyasov wouldn't even talk to me.

-He's afraid that I'll beat him up. -I know how I look in your eyes.

A vulture taking advantage of people's naiveté.

A villain ruining families and fates.

Aren't you?

I'm not.

I prefer to say that I sell hope.

He's selling people hope with a nice profit.

He has a two-story house in Miami on 50 acres.

I don't force anyone.

I don't drug them in by the hand.

You probably pay taxes.

I do. Quite a hefty sum, as you can imagine.

Do you have more questions?

Only one.

Do you know this man?

No. I've never seen him.

One more question. A personal one.

Could you make your agency's ads…

less vulgar, I guess?

I have a question, too.

Where do you see those ads?

Online, when I watch TV shows.

If you see these ads, it means you use pirate websites.

Of course.

So it's you who is violating the law.

Because these websites

let you watch the content that doesn't belong to them.

While I, with my vulgar ads, as you put it, and my nasty business

do not break the law.

You are free to go.

If you know this man, call the number on your screen.

You know him, don't you?

…short beard, brown eyes.

Age – 60 to 70.

Sverdin certainly doesn't, or he is a very good actor.

He had one on you with these TV shows.

Mitia, now I understand why the cat pissed in your shoes.

-Did Katia call you? -If I were a cat, I'd piss in your boots.

Kolia, your phone.

-Thank you. -You're welcome.

Yes?

Okay. Bring him in.

It's already here.

The cat?

The composite portrait, Mitia.

-Why are you yelling? -I'm not.

Nikolay Vladimirovich, a visitor for you.

Thank you, Tania.

Please come in.

Sit down.

-Come on, tell me. -Will I go to jail?

Why would you go to jail?

Please give me your name.

Stepan Grishin.

Okay.

Okay, Mr. Grishin,

born in 1955. Start talking.

I don't know. Maybe you'd better ask me questions.

Okay.

What were you doing at 14, Lesnaya St.?

My son was killed.

When?

-In that apartment? -No.

A month ago. More precisely, 26 days.

They said it was a suicide, but it wasn't.

Vania… Ivan couldn't have done it.

Let's start from the beginning.

What were you doing at 14, Lesnaya St.?

I was watching the bookies.

Why?

They… They killed my son.

-What makes you think that? -He worked for them as an analytic.

Were those his papers in the apartment? The ones with the numbers?

Yes. I couldn't sort them out.

You are not alone.

Why is the brute-force so long?

Isn't it a linear algorithm?

Linear regarding the number of variations.

But it is exponential in relation to the password length.

-You mean shut up and work. -Exactly. Shut up and work.

Ivan Grishin was found dead in his apartment

number 16 at 7, Pechorskaya St.

Cause of death – a drugs overdose. Is that true?

Yes. But…

He couldn't. It wasn't him.

Did you blow up the betting agency?

No. I don't know how.

-But you would if you did? -Yes.

Good thing you don't, then.

-Do you know something who does? -No. I don't.

How did you get the key from that apartment?

The key? It was an accident.

I sold them tickets to Bali.

I work at a tour agency. I used to.

They forgot it at the office.

I was going to return it, but they left, and then…

So you had the key, you knew the owners were abroad,

and you were watching the betting agency. Why?

You see, my son and I weren't seeing eye to eye,

and my wife, Vania's mother, died a long time ago.

It doesn't matter. No, actually it is.

Anyway, when he grew up, we somehow grew apart.

I believe… He loved Innokentiy more than he loved me.

Who is Innokentiy?

The cat. By the way…

He is okay. Don't worry.

My wife adopted him.

Tell her not to feed him raw meat.

He has a weak stomach and…

Excuse me for a second.

The phone. Find the phone.

-Who is it? -Dad.

Hello?

Ania, how is it going with the code?

Nikolay, it's only quick in the movies.

The generator has gone through all options up to six symbols.

With seven numbers, it would take hundreds of hours.

We've been…

You know what, try Innokentiy.

Try Innokentiy.

-No. It doesn't work. -It doesn't work.

Please don't distract us.

How do you spell Innokentiy? Let me see.

Here.

It has two Ns, Vitia.

Just a second.

-Yes. -It worked. Who is Innokentiy?

I'll tell you later. Later. Bye.

Excuse me.

How long had he been an analytic at this company?

Around one year. He's a good programmer.

Were you the one who found him?

Yes. I came back from work. The door was open.

And there…

Vania was a very orderly person.

He wouldn't leave the door open, especially with the cat in the house.

God, this cat again.

What happened then?

Then I called the ambulance.

But… Vania was already…

Then the police came,

and I tried to explain it to them that Vania wouldn't kill himself,

but they wouldn't listen to me.

Do you believe your son was killed?

-Yes. -Who?

Someone from the agency for something he had done.

What had he done?

You see, before coming to work for them, he used to gamble.

For the most part, he'd lose.

He kept betting after they hired him, even though it was prohibited.

Did you make bets for him?

Yes. It… brought us closer.

We were even going to go on a vacation together for the first time. To Turkey.

I was going to buy us a tour with my agent's discount,

but it didn't work out. There was no one to leave Innokentiy with.

So what about the betting?

He started winning a little,

and then he told me to bet 100,000.

I was trying to talk him out of it, but the bet won us some crazy sum.

Excuse me.

Ania, what?

One hard disc contains the agency's betting statistics for the last year.

-Okay. -The other is more interesting.

It's a random tree forest, but it isn't that random.

Ania…

I used the Shapley value to determine the meaning

of every characteristic in the prediction.

In Russian, if you please.

Looks like the model taught itself to tell fixed matches

instead of predicting the results.

Is it possible?

Excuse me. What was the match you placed a bet on?

The Ilyasov-Trukhanov fight.

Thank you.

Looks like your Shelley was right.

It's Shapley, not Shelley.

I'll call you back.

Lloyd Shapley, Nobel Prize winner.

In economics, because there is no Nobel Prize in mathematics.

Shelley!

What makes you think it was the bookies who killed your son?

When I came to collect my winnings…

You placed bets in person? Not online?

Of course.

Why "of course"?

Vania worked there, and he knew how these things worked.

With online betting,

the casino does what it can to stop you from collecting your prize.

-Does it? -Yes.

The ads say that…

Mitia, do you believe the ads?

Go on.

Some man was following me from their office.

I was scared that he would try to rob me, so I took a cab.

Robbers often follow their victims like this.

When I told Vania, he was scared, too, and he stopped betting.

Then problems at work started.

He didn't tell me anything, but I saw how nervous he had become.

Then this girl…

What girl?

A girl came to visit him one day.

I ran into her on the stairs.

At first I didn't pay much attention.

Well, I noticed her, because she is a girl that can't go unnoticed.

Vania… he…

I never saw him so scared.

And then he got killed.

Was there something between your son and that girl?

No. Vania, he…

He wasn't like that. He wasn't interested in girls.

When I asked, he said she was a colleague.

Can you describe her?

She…

Well…

No, I could recognize her.

That's why I was watching the office.

I know she had something to do with it.

I can feel it.

We'll look into the circumstances of your son's death.

You can be free for now.

Aren't you going to send me to prison?

No.

A court does that. We can only arrest you, but there is nothing to arrest you for.

Except for breaking and entering.

Let's make a deal.

Yes.

Here.

We have a deal.

So what shall I do? Where should I go?

Home.

I can't go home. These people, they…

They could do to me what they did to Vania.

Here… It's at least clean.

Yes. I just don't have any money right now.

Don't worry.

-Hi. -Hi.

We need a room.

For how long?

-Three days, and then we'll see. -That's her.

The girl.

Golden Strike. Sports bets.

Zinaida Prikhodko, 25, actress.

It says she's an actress.

She had been working as Sverdin's advertisement chief for the last year.

-Oh. -I'd even say Wow.

She doesn't answer her phone.

The last time she was seen was yesterday at the bookies' party.

-Do you have the actress's address? -Yes.

-What are we waiting for? -Let's go.

Is it here?

I guess. I hope there is no cat there.

I'd prefer a cat.

According to the lab reports,

Prikhodko and Grishin died of a phenobarbital overdose.

There must be a but.

Yes, but there isn't.

Vitia and I have found something on Grishin's discs.

Look.

These people predicted the Ilyasov-Trukhanov fight's result.

Moreover, they betted on Trukhanov winning in the third round.

Some kind of bums?

That's true.

They are mostly single people of insufficient means.

I believe this is our but.

Almost all these people moonlighted at the Sverdin agency.

They'd probably hire them for a one-time job,

put the papers in front of them and have them sign it blindly.

They worked as walking advertisements at the metro station, distributing leaflets.

-That's a good but. -There is another.

Zinaida Prikhodko was the one who hired them all.

It's a bad but, because we can't question her.

Especially bad for Prikhodko herself.

Who are these?

People who won not only the Ilyasov-Trukhanov bet

but some others, too.

What's the probability of it?

There is this thought experiment.

If you give a monkey a typewriter,

eventually it will write "Hamlet".

-How about Tolstoy's "War and Peace"? -That, too.

Sooner or later.

Yes. The probability is 10 in the power of -371.

So you mean never.

No. It means what it means. It's important.

We'll solve this case sooner or later.

No clues, Grishin and Prikhodko are dead, bookies' servers exploded,

and no court will admit the data from Grishin's disc.

The fight for the title will start in a couple hours.

After the fight, Sverdin will go to Miami to swim in his pool.

That's why, Mitia, you need to stop whining

and deal with these people.

Ania and I will go and see this fixed fight.

Sverdin wanted to talk to our expert real bad.

Look at what I've sent you. Will we make it?

We will.

What is it you're going to make?

I'll explain on the way.

Vitia, don't turn off your phone.

It's the undercut.

It's a floating pair.

It's like…

An opening act at a concert.

Like one plus one.

Kolia, I get it. Where are the screens?

There.

Good evening.

Oh, the expert. Thank you for finding time.

I wouldn't miss it.

-Would you like a drink? -Yes. Champagne.

Champagne for the lady.

Thank you.

Box!

Hello. My name is Anna Shvabrina, and I'm a mathematician.

Those who make bets know that the bookmakers change quotients

depending on the total of bets on the event.

Thus, the quotient for such rare events as a knockout in a three-minute round

looks like this.

What the hell, expert?

This is my expert opinion.

But if the fight is rigged, and big bets have been placed,

in honest, the quotient should look like this.

EVENT PROBABILITY

You will agree this looks suspicious.

-What is this? -Anna Nikolayevna says…

So we need to change…

We can't allow them killing mathematicians.

They change it artificially.

-A vendetta? -Worse.

A mathematician's revenge.

In the last fight for the title, when Ilyasov fell down in the third round,

the quotient behaved in a similar manner.

Now let's see how today's quotient behaves.

-What are you doing here? -Look.

The calculations show that Ilyasov will take a dive in the sixth round.

How?

So it's true?

…depending on the total of bets on the event.

-Who is it? -A mathematician.

A mathematician.

Better ask yourself who you are.

…big bets have been placed,

in honest, the quotient should look like this.

This is my expert opinion.

Have a good night.

We have an abnormal number of bets

on Ilyasov being knocked out in the sixth round.

You've made me go bankrupt.

We'll make you go to jail.

Uppercut.

No. It was a left hook.

Yes. Right.

Golden Strike. Sports betting.

What are you watching?

Nothing interesting. The news are to start any minute.

The long-anticipated rematch between Ilyasov and Trukhanov

ended in a huge scandal.

Thousands of spectators were waiting for tonight,

but the fight was cancelled.

All bets for the rematch are off.

Yes. The Bak-Tang-Wiesenfeld model.

What is it about?

The critical condition of a system.

Any grain of sand can cause an avalanche and ruin everything.

Yes. And it's beautiful.

Well, to three cool guys.

-And to mathematics. -Yes.

…helped to solve numerous cases

and catch dangerous criminals.

According to our correspondents,

Anton Sverdin was arrested

on the suspicion of killing Ivan Grishin and Zinaida Prikhodko,

as well as a betting scheme.

According to our sources in the police,

irrefutable evidence was collected against him.

The investigation has finally come to an end.