The year is 1967. A series of mysterious murders of women are taking place in Leningrad. An experienced KGB major, Chuzhbin, and a police captain, Fedorov, are assigned to catch a maniac who leaves mysterious signs next to the victims.

Moscow, 1978, the eve of the Olympic Games. In the Soviet Union, several cases of fraud have been registered, the victims of which were women "with a position in society." The victims describe the signs of the criminal in the same way: a charming, intelligent middle-aged man, easily insinuates himself into trust. After the suicide attempt of the deputy chairman of the district executive committee, a professional detective, police captain Shmakov and senior police lieutenant Polina Novgorodtseva, takes over the investigation of a high-profile case.