Sonny Chiba's first martial arts film, a partially fictionalized judo biopic based on prominent judoka Shiro Saigo (Chiba), the second student of judo founder Jigoro Kano (Naoki Sugiura).
Paavo and Eeva, two young people who have moved from the countryside to the city, meet a gang led by Kalle, who spend their time loitering and committing petty crimes.
Returning from Switzerland, a young investigator meets María, his father's new wife. They immediately feel an irresistible attraction, which he tries to overcome by mixing it up with another woman.