Ksyusha barely remembers her father: he went missing when she was a child. Incredibly, he is showing signs of life, despite being in a coma. The man is returned home in this condition. His wife has now remarried. The family is thrown into disarray by the return of the former master of the house – terrifying things are happening in the house, and Ksyusha’s mom starts acting weird… Ksyusha begins to suspect that something supernatural, icy, and lifeless has come home with her father. And now Ksyusha and her stepfather are about to find themselves protecting their family from a demon.
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.