Anfisa is a simple teacher. Or he wants to seem like one. After all, the girl’s father is a crime boss. All of Anfisa's half-brothers and sisters work in her father's business, and only she stays away from family affairs. But it is Anfisa who receives a threatening call and finds out that Smirnov, the guy she is dating, poisoned several people and disappeared with a huge amount of money. But that's not all. Before escaping, Smirnov tells Anfisa that he bought a diamond with the stolen money and left it in the storage room. Having taken the “transfer”, Anfisa finds out that the diamond is fake. But the bandits following behind are quite real. Running away from both her own people and strangers, on the train she meets Ilya - a lover of detective stories, a karateka, a specialist in women's cosmetics and a generally strange guy.