Police find a girl with a bleeding face in a small town park at night. First the girl, a textile factory worker Jana, refuses to talk, and then she decides to tell the truth. After her father's death she, by herself, takes care of her younger brother called Pinda. She does not like the influence that a gang of older boys from the factory exercise over her brother. The gang leader Jirka, called King, is admire by local girls whose number exceeds boys in the town because there are many textile factories where only girls are working. They easily yield to him and then he easily gets rid of them. Jana is a hard nut for him. She refuses his purposeful courtesy and thus she unintentionally gets his attention. King inspires the gang on how to get money by stealing textile from the factory warehouse.

1970 film by Vera Plívová-Šimková

The protagonists are the same, only five years older: Kocourek Kolman, mother Kocourková, mother Kolmanová and father Kolman. Kocourek applies to study graphic design at the UMPRUM. He has not been accepted twice because there is a great interest in studying at this university, only a select few are accepted. Mother Kocourková has long given up on the dream that her son will study something proper and that she will ever understand him, and so she increasingly talks to herself with a bottle of vodka. Kolman, meanwhile, is studying in his second year at the University of Economics. But instead of lectures and seminars, he is only interested in his classmates. He packs one after another. He solves his exams and credits by fraud or bribery. Kocourek, on the other hand, is conscientious and hardworking and falls head over heels in love with the enchanting Júlia, who is also applying to the UMPRUM.

A husband asks his best friend to seduce his wife in order to get divorce.

1972 film by Václav Vorlíček