Having discovered a sunken luxury Mercedes in the lake with the bodies of a successful businessman and his daughter, Alyoshka could not shake the feeling that this tragedy was not an accident. Tatourine was not poisoned or euthanized. He was not involved in racketeering. There were no problems with crime. What made this man drive his car into the lake at full speed?! Having shared his doubts with the young investigator Lina Shevchenko, Alexey realizes that he is not alone in his suspicions. But you can’t attach guesses and premonitions to the protocol. Soon, getting acquainted with the surroundings of the deceased, the young man finds out about the existence of a family secret...