In the resort town there is a strange and mysterious murder of oligarch Vladimir Sery. Criminal police begin an investigation in which people from the close circle of the victim are involved. During the investigation, no less mysterious murders of persons who are somehow involved in this case take place. The young beautiful woman, Alexander Bogachev, as a private lawyer of the oligarch Sery, helps investigators to understand all the intricacies of the murdered family and extra-family relations. In this case, she collaborates with the young lieutenant Kostya, a local police officer. During the investigation, it turns out that the causes of the murder lie in the distant youth of the victim.