Due to his inherent cunning, resourcefulness and access to police archives and databases, Poptsov has been able to avoid punishment for many years, terrifying the entire Irkutsk region. He gradually turns into a semi-mystical character, an elusive demon from whom there is no escape. Nevertheless, the operatives, led by Kovalev, after going through a series of difficult life situations, will get on the trail of the killer, stopping the terrible conveyor belt of death.