In the early 2000s, a series of murders of women began in the Ural satellite town of Chelyabinsk, Kopeisk. The society found out about this after the murder of two friends, graduates of the school, who were discovered on May 25, the day after the prom. Both girls, dressed in formal school uniforms, were strangled. The postures of the corpses and other signs testified to the sexual nature of the attack and murder. The murder of two girls dressed in school uniforms at once, and even on the territory of a kindergarten, stirred up the city. Unsolved cases of murders under similar circumstances were raised, and it turned out that three more women who were not related in any way were killed in a similar way within six months. All the cases were combined into one case. The investigation lasted for several months, and during the murder of the next, last victim, the perpetrator was arrested. The circumstances of the missing women, the methods of the murders, the reasons for them, the identity of the killer, the city itself where the events took place — all this may sometimes seem incredible, but it happened. The author, Alexey Reshetun, author of the best—selling books "Autopsy will Show" and "Pacentology", was a direct participant in those events, as he worked in Kopeisk at the time, traveled to the places where corpses were discovered, opened them and conducted an examination of the criminal after his arrest. The purpose of the book is not so much to tell about the murders and the investigation, but to draw the reader's attention to the social aspects of the formation of such a type of criminal as a "Cop maniac."