Oleg, the head of the Department of Special Investigations, takes time off for the first time in five years to privately investigate the death of his fiancée, Zhanna. His current girlfriend, writer Khel, helps him in the search. First, they review the case materials collected by the police and realize that in a series of murders, one of whose victims was Zhanna, there are certain oddities. All the crimes are committed the same way, like carbon copies—which does not fit the psychological profile of a maniac. It also became clear that the culprit knew all of his victims, meaning he must be found among the close circle…