A film in five episodes, all based on an attempt to show the life of young people today, their feelings and relationships, their behaviour in public and private life.

Grammar school teacher Bláha hurts himself in pursuit of a red lizard, and is lying unconscious in the lonely house of Santrucek family. The postman, who found Bláha's coat and hat in the water, announces to everyone in town that the professor has drowned. But, the venerable citizens are at that moment more interested in the theatre group with the beautiful guest actress Eva Gazdová. They demand a change of repertoire and manage to persuade the theatre manager to have the group play the musical comedy The Red Lizard instead of an established play.