Mrówiec discovers that Maciek is behind the murder of the policewoman. However, there is no evidence that he is acting on Piotr's orders. The investigators know that there will be more victims. The head of the psychiatric hospital tries to prove that Piotr is faking his illness. Since Wolnicki appeared in the ward, the other patients feel threatened. The series of murders does not stop, Maciek kills another policewoman. In the meantime, new facts about Mira's death come to light. (thetvdb.com)