Former priest Sergius, removed from the ministry in the church, became a hunter for evil spirits. In the course of the hunt, he encounters investigator Catherine, who is just about to get acquainted with the world of the supernatural. Sergius and Katya become a team and together they begin to fight against folklore villains - Koshchei, Bayun and others.
Germany, 1953. Corrupt gang of Soviet officers appropriated jewelry seized from repressed citizens. The officers take the young scout Terekhov and collector Avdeev, who recently left not so distant places, to guard the myriad wealth.
Sergiy and Katya will have to fight against the ferocious folklore evil spirits - the genetically modified Serpent Gorynych, a gang of brownies who terrorize people, and also repulse Viy himself, who is trying to take power into his own hands. They will continue their personal struggle: Katya will try to rid Sergius of very bad habits, and Sergius will try to melt Katya's heart.
