The young family who moved to a new apartment on the outskirts of the city. The nanny hired by them for the newborn daughter quickly gained confidence. However, the older boy, Egor, talks about the frightening behavior of a woman, but his parents do not believe him. The surveillance cameras installed by the father for comfort only confirm everything is in order. Then one day, Egor, returning home, finds no trace of either the nanny or the little sister, and the parents are in a strange trance and do not even remember that they had a daughter. Then Egor, together with his friends, goes in search, during which it turns out that the nanny is an ancient Slavic demon, popularly known as Baba Yaga.

A mysterious Dark Horseman slays young girls near the village of Dikanka, and he has already butchered 11 ladies. Nikolai Gogol, a scribe from Saint Petersburg has to take charge of the investigation, but the closer he gets to solving the case, the more fits he has, causing macabre visions. When he learns the next victim is his beloved, Liza, he doubts that he can protect her and resist the murderer. Fortunately, he meets somebody who can help him: Khoma Brut, the witch hunter, martial artist and philosopher. Together they spend three dreadful nights in an old chapel reading the funeral service for Ulyana, the witch, and calling upon the ghastly evil spirit Viy.

When a single mother begins to experience symptoms of the stigmata, she seeks the help of a local priest and nun to help her understand what is seen and unseen.