If you have doubts that the police version is correct, call private detective Tatyana Ivanova. And she will figure it out - she will put the city on its ears, but she will find out what really happened. That's what happened this time. On the eve of the wedding, the young beautiful model Polina Ilyina drowns in the pool of her own house. The police perceive the incident as an accident. But the father of the dead girl turns to Tatyana for help - he is convinced that someone helped Polina drown. But there were only relatives in the house...