Investigator Pampurin is leading the case of the murder of Mayor Sochin's son and two of his friends. Everyone knew Valera Sochin as a very good guy. The father is grieving the loss and asks to unravel the case as quickly as possible. Pampurin is trying to find out who killed Sochin Jr. and why. But the evidence collected by the investigator leads him... to his own daughter. The shocked father cannot believe that his Natasha is a criminal. And what is the motive? The case takes a completely unexpected turn when the girl tells the whole truth about that night. But because of this truth, their family is in mortal danger...