A housewife from St. Petersburg, Nadezhda Lebedeva, at the request of a former colleague who ended up in the hospital, agreed to live in her country house and look after the dog.Soothing landscapes, fresh air, silence and grace - what could be better for an urban a resident who is tired of the hustle and bustle and dreams of plunging into an atmosphere of tranquility? However, fate once again prepared a dangerous adventure for Mrs. Lebedeva.Strange events begin to occur in an ordinary village house: a corpse appears and disappears, traces of the presence of a stranger are found. But Nadezhda Nikolaevna is sure: there is no mysticism here. And the secret passage she found only confirmed her guess.Being inquisitive by nature and having an adventurous character, she plunged headlong into solving the mystery of the old house ...