Kolya Zvansky is an ordinary Moscow schoolboy, living an ordinary childhood life. Suddenly his father is arrested as an “enemy of the people”, and gradually everyone who was around him turns away from the boy in fear. The music teacher refuses to continue lessons, former friends not only stop communicating, but also begin to beat him. Only the girl whom he loves remains nearby, but she is also forbidden from seeing him. In addition, his mother and brother are threatened with arrest, but most importantly, at school he is persuaded that he must disown his father....