A successful 40-year-old doctor cardiosurgent Artur Zverev meet Katya Soboleva and understands that she is that woman who he can cast in his lot with.

Katya is a single mother, raising a 6-year-old son Fedor and trying to protect him from human cruelty, negative influence of crazy rhythm of huge megapolis, leaves him at the country with her sister. The deepest dream of young woman is to find a father to her only child, who, growing up, is in need of such. But all new acquaintances bring her disappointments.

And suddenly, fortune becomes favorable to Katya in a person of Artur. Artur, being kind, intelligent, attractive, full of love to Katya is ready to adopt Fedor.

At the wedding day Artur makes a long-awaited present to his beloved. He gives Katya a certificate of adopting little Fedor. After the wedding ceremony the newly wedded decide to go the village to take Fedor, but on the way they have a car accident…Katya dies and Artur after hesitating and in memory of his beloved takes a boy. After a chain of complicated relationships between Fedor, who never knew how it could be to have a father and Artur, who had never been one, heroes come to understanding. They help each other to cope with a challenging task – to learn how to be a good son and a good father.