Businessman Dmitry Sadovnikov was killed in his own apartment. His mistress Irina and friend Alexey Vodopyanov were detained on suspicion of the crime. The police investigation reaches a dead end, and then a private investigator and part-time owner of the prestigious Chaika restaurant, Larisa Kotova, takes the case into her own hands. She also has her own interest in this case: Larisa’s daughter is having an affair with Irina’s brother... The circle of suspects is so large that Kotova decided to start with those who were present at the party. Some clue has already been found, but... The detective's daughter is kidnapped! What to do? Continue the search or, abandoning everything, rush to save the girl? Apparently, we will have to look for a middle ground - after all, the kidnapping is probably connected with the murder of Sadovnikov...