The happy days of the first love of eighth graders dimmed when they learned that Nadina's mother and Serezha's recently widowed father were going to live together. The youthful maximalism of adolescents hurts parents.

The protagonist of the film, engineer Barkasov, finds himself in ridiculous and anecdotal situations all day. He is a responsible worker, the head of a large institution and is completely exhausted from pressing urgent matters. On the advice of a doctor, his deputy bought two operetta tickets for his boss and ordered secretary Sofochka to accompany Barkasov at an evening performance...