Made by "Art Pictures Studio" film companies.
A nine-year-old girl, Marta, lives in Moscow without parents, only with her grandfather.
Martha hides her marital status from everyone in order not to get into an children's homes.
She is forced to lead an adult life, because, besides school lessons, she has a lot of household chores.
Gradually, Marat gets warm feelings for Martha and abandons the idea of cheating on her apartment.