Осторожно, люди!

Corrupted criminal investigation officer, Sergey Volkov, got into serious trouble - for another trick while being drunk, the boss sends him into exile - into the ranks of exemplary mounted police. All the staff of the regiment seemed to him fabulous creatures with ancient notions of duty and homeland. Not wanting to linger on a new place, Volkov wants to leave to settle his personal affairs, but having learned that his new colleagues have fallen into a powerful batch, he nevertheless decides to come to the rescue.

Klim Shipenko is making a film about Lomonosov starring Pavel Derevyanko. But the actor is overtaken by a creative crisis, and for inspiration he goes to the homeland of the scientist whom he sees in his fantasies. Pavel settles in the house of the Belovs, whose head Egor earns by physical labor. The appearance of Derevyanko changes the usual way of life of the locals: Egor is afraid of losing his wife Masha, their daughter Polina falls in love with a celebrity, and deputy Kholmogor builds an election campaign with the help of a star.

After the role of Lomonosov was given to another actor, Pavel decides to take another swing at a significant role — Chekhov. Derevyanko believes that he will be able to receive critical acclaim for his serious dramatic image. As soon as the filming of the film about Anton Pavlovich begins, it turns out that the playwright's great-granddaughter Margarita Vasilyevna lives in Taganrog, which prohibits making films. Pavel returns to his hometown to convince the heiress. However, for the sake of the coveted role, he will have to solve all the conflicts of her family.