The film takes place in a deserted resort in the offseason. Young Katya gets acquainted with the cheerful company of visiting guys who have specific entertainment - to organize parties in other people's empty houses. And Katya knows the right place: an old dacha on the coast, whose owner has long since left. A secluded house, which at the beginning of the last century had a spiritual salon, seems to be an excellent option. At the height of the party, one appears whom Katya did not expect to see: the mysterious master of the house ... The man she loved. A person in the power of otherworldly forces.