Nina Nikitina works at a translation agency and prepares for the wedding. But sometimes, secretly from everyone, she drives at least to look at the eight-year-old girl Varia. Varya is Nina's native daughter, whom Nina gave up shortly after birth. Nina can't forgive herself, but Varya can't return either – the girl already has wonderful adoptive parents, Masha and Andrey Gromova. When Nina learns that Vari's foster mother was killed in the accident, Nina finds no place. She is even afraid of imagining that she is an orphaned baby. To be closer to her mother's daughter, Nina gives up her real life and enters the thunder house, posing as a nanny psychologist ...