Серия 4

Sorokin is convinced that Natasha is innocent, but all the evidence against her. Meanwhile, Lera, guessing the causes of the incident, is trying to help her friend. She goes to Olga and secretly records her, giving the tapes to Sorokina. This leads to the murder of Olga, by Arthur, whose career became threatened. Sorokin begins an investigation on this, while a romance sparks with Natasha.