An uninvited guest is worse than a cat who threw all your cups on the floor. A relative of her mother-in-law arrived at Tatyana Sergeeva’s house quite unexpectedly and immediately began burdening the household with her health problems. Tatyana decided to quickly run to work and meet new employees. But before she had time to properly talk to everyone, a woman who could barely stand on her feet entered the office. Varvara Nikolaeva found out that her husband is not the father of their common son. DNA analysis indicates adultery, but the woman has never cheated on her husband! This simply cannot be. Varvara asks the detectives to solve this riddle. Tatyana sends Varvara to the laboratory, and it turns out that Nikolaeva is not the boy’s mother! This means that the child was replaced, and most likely in the maternity hospital. Detectives find Augusta Davinci, who was caring for the baby in the clinic. Sergeeva makes an appointment for her in a cafe, Davinci agrees, but a few minutes before the meeting, Augusta is hit and killed by a motorcyclist. The thread breaks. But Nikolaeva demands that the matter be completed. Sergeeva gets to the bottom of the truth, and the solution shocks her. After all, one of the members of this family turned out to be an insidious snake, ready for any crime. Daria Dontsova is the most popular and sought-after author in our country, a favorite of millions of readers. More than 200 million copies of her books have been sold in Russia. Her work fills hearts and souls with light, optimism, joy, and confidence in the future! “Dontsova is an incredible hard worker! I don't know any other writer who works so hard. I respect her as an example of hard work as a writer. Women need psychological support and receive it from Dontsova. I myself read several of Dontsova’s novels at one time. It is read by very different people. And very busy business women who need to turn off their heads for a while, and housewives who have a 15-20 minute break between dropping off and picking up their children.” – Galina Yuzefovich, literary critic.