After her parents divorce, 12-year-old Nastya moves with her mother to the small town of Karachinsk. Having settled in the old house of her deceased grandmother, she transfers to a new school. Relations with classmates do not work out from the first day.

However, the school conflict is not the only problem, because inexplicable things begin to happen at home, which she will have to face every day. In a series of these events, paranormal phenomena and creepy secrets will emerge. The life of the heroes will be shrouded in mysticism and the worst thing is hidden in an abandoned building on the outskirts of the city, which everyone calls a haunted house.