According to the novel by Tatiana Ustinova.
Strange things are happening in an old mansion on Net Ponds, which has not been listed in any documents recently. On a Saturday morning in March, two friends who live in this ghost house, Lipa and Lucinda, have ... a neighbor's corpse. In addition, the body is wrapped with explosive wires. The new neighbor Pavlo Dobrovolskyi saved the residents of the unfortunate house present at the scene by neutralizing the blast wave.
However, the terrible house requires new victims: the Paramonovs go to that world, Aunt Verochka almost suffocates from the gas. Who's next?
Pavlo suspects all the residents of the house, except for the Olympics, with which he is connected not only by the investigation, but also by tender feelings ...