The film is divided into two distinct stories with the same setting: the back-stage of the Moscow Operetta theater with the Can-Can metaphor which is a high-energy and physically demanding dance. Human relationships, betrayals, and the relationship between parents and children are the same common denominator found in the two parts of the film.

The problems of the soviet school system: A Mother, tired and stupefied by her two sons. A stepfather, who could not care less. A teacher, who is trying to reach the heart of every student, those guys who do not know, where to put their energy ...