The plot is based on the story of a meeting and reconciliation after many years of separation of the Mikhailovs, the realization of a mistake they made in their youth. Once they were too lazy to understand each other. He left for the construction site in a hurry, and she, having accepted his departure, did not forget the offense. A few years later, the hero came to his wife and grown-up daughter

In the center of the film is the image of a young officer Andrei Kiselyov, the commander of the acoustics of the anti-submarine ship "Dexterous".