The story of a music academy student Zdenek, who meets a charming girl, and without realizing also gets a son with her. Dealing with such a situation is not easy, especially when one day the child's mother disappears. Twenty year old Zdenek faces a serious decision. Although he is aware that a child may endanger his studies and perhaps even future career, he refuses to entrust him to the care of the state institution.

In the film, the creative forces of personalities from three spheres of art collide. The subtitle "The Game of Love and Hate" refers to the motivation of an old Czech medieval satire, the theme belongs to Antonín Přidal, an expert on this subject. His collaboration with Juraj Herz created a collage of past and present, an updated, sharp satire and a parable about the clash of human qualities that could not but end up in the vault. The music of the Prague Selection - Michael Kocáb and Michal Pavlíček - also contributed to the film's offensive provocativeness - the film was one of the reasons for their complete move to the underground. The dancing chorus of medieval citizens resembles more of a jumble of long-haired maniacs, the edge of a contemporary dump intrudes into the space of a medieval marketplace, and the characters oscillate between the past and the present, whether in their appearance, symbolism or behaviour.