Is it true that some houses bring their owners grief? Dasha Vasilyeva is not afraid of black cats, is not afraid of the number thirteen, loves Mondays and does not believe in cursed houses. But the mansion that is adjacent to her cottage is actually unhappy. The owners are constantly changing in it and something bad has happened to everyone. And now Karina Burkina, another owner of the ill-fated palace near Moscow, has lost her youngest son Valery. The mother-in-law of the hostess Svetlana Alekseevna ran to Dasha for help. Vasilyeva agreed to help the Burkins. And then it turns out that Colonel Degtyarev has known this family for a long time, and met them under very strange circumstances: many years ago, Svetlana Alekseevna asked Degtyarev to help change her daughter-in-law's surname, and her grandson Kiryusha also had a patronymic! Dasha is sure that these threads from the past will help in the search for Valery. But now she understands how true the proverb is: little children - little troubles, the children have grown up - the poor have grown up.