When a person has smiled

The film is about the tragedy of two families when a pilot Roman and a flight attendant Olga died in a car accident. Olga and Aleksey's young son lost his mother, and Inga lost her loved one. As a devoted friend, Alexey does everything he can to make Inga's pain less unbearable. He drowned out his pain by caring for his son. But as time passes, wounds heal, the son grows up, and it turns out that Alexei is still the most loyal friend in Inga's life, and there is no one closer…