The daughter of a famous athlete in the past leads a real party life of "golden" youth. Her father Roman Viktorovich Tolbukhin is dissatisfied not only with the lifestyle of his only daughter, but also with her environment. Attempts to "dig up" something on the daughter's "dear friend" lead to a sad end - Tolbukhin is killed at a sports base. The thread of the investigation leads the detectives to expose the agent leading a double life.

A clever swindler, posing as a descendant of the Romanov family, fakes his own murder. Very influential people fall under suspicion. In the course of the investigation, it turns out that the fraudster is still alive, and the detectives have to exert considerable effort to make him discover himself.