Romka Marchenko, a young kid who is participating in movie shooting tries to stop international spy.

On the outskirts of the provincial town, Yevdokim and Yevdokiya live, raising foster children. Yevdokim works at a factory, Yevdokiya is a housewife. The family seems to be safe and happy: the only trouble is that Yevdokiya cannot forget the love of her youth. This Yevdokim cannot stand and offers Yevdokiya freedom, while he will remain with the children. But all these contradictions are drowned in mutual love for children and for each other.

9-year-old boy complains about his hard life in a letter to his grandfather.