After a dangerous and terrible investigation of the Joker Nastia Kamenskaya decides to leave work. However, by the will of circumstances, she is involved in a new investigation. Kamenskaya and Chistyakov go to the long-awaited vacation at sea. But urgent matters cause Nastya to leave early. Nastya herself is still tormented by nightmares related to the maniac case she led. In Chistyakova falls in love with Julia - his work colleague. Kamenskaya is jealous, but her husband convinces her that there is no reason for this. In parallel, the story of the investigator of the prosecutor's office Ermilov and his wife Olga, which is connected with Georgi Dudarev, is developing. His wife Lena once finds lovers together. Deceived woman requires a divorce. But soon Lena explodes in her car. A blind witness to the incident is the blind young man Artem, who wants to become a musician ...