New neighbours — a father and a daughter — move
into a house where Fedya Streltsov lives. Fedya and
Nadya became friends, they share a desk at school and
do their homework together. Nadya is the first person to
whom Fedya confides his poignant secret--- he doubted
his father’s honesty. Fortunately, all ends well, except
that the boy has to part with his friend. Nadya and her
father moved to the Far East, to work on a large-scale
construction project. Source www.lenfilm.ru