A single mother is confused by the changes in her teenage son, who has become distant since spending summer vacation with his father.
Country girl Nadia moves to the city and becomes a maid in Valya's apartment. Valya, who is a member of the local District Committee, does not know that Nadia fell in love with her currently absent husband, a geologist named Maksim, when he had visited Nadia's village during a recent expedition.
The film is dedicated to Sergei Pavlovich Korolev, whose name is associated with the first stage of space exploration.
