A huge old house in the village, inherited by the Kulikov family, is fraught with many secrets and stories. It’s so exciting to delve into its depths, finding secret drawers and antique objects! However, the serene summer holiday was interrupted by a mysterious incident in the house of neighbor Cleopatra Appolinarievna, in the investigation of which both children and adults enthusiastically became involved. It is difficult to say what brought them more pleasure - the investigation process itself, or its result. The ancient village of Aleksandrovka temporarily becomes a center of attraction for criminals, sectarians, ghosts - where would we be without them - to the great delight of its residents.