Three people live together without having anything to do with each other. The macho father used to have a shooting gallery which he had to sell. Yet secretly, he keeps on dreaming about it. He is crude and cold with his son and his liver, and takes no notice of his wife. His son, who also often dreams about the old shooting gallery, suddenly shoots his father dead with the strictly guarded gun, and hides the corpse in the bedding box. A few days later, his mother helps him bury the corpse. The crime is discovered and Feri is arrested. The detective attempts to understand the purpose od the murder, learn about the personality of the boy, his relationship to his family and to the wolrd. His attempts fail. The boy escapes, finds his girlfriend, but she refuses to associate herself with him. In the meantime, his mother moves to her lover. Feri sits into a swing on the abandoned shore of Lake Blaton and then vanishes from the scene.