Kostya is 23. He is an underground railway driver’s assistant. One day the doctor says that Kostya has the heart disease: he can die any moment… Kostya decides not to tell anybody about his disease. He tries to live the same way as he lived before his illness was diagnosed. But he keeps thinking about the meaning of life.

Inna lives with her dad and little brother in a small town. Her life changes when a new girl, Masha, comes to her school. They become friends. But Masha is murdered by a maniac serial killer, who kills teenage girls in the town. Inna goes to church for the funeral service. There she meets the priest's son Ilya, whose sister was also murdered.

A story of a first love between six-grader and his arrogant classmate.