The Warped Ones , Kynetsu no kisetsu? , aka Season of Heat, Wild LoveMakers and The Weird Lovemakers is a 1960 Japanese Sun Tribe film directed by Koreyoshi Kurahara and starring Tamio Kawachi, Eiji Go, Yuko Chishiro and Noriko Matsumoto. It was produced and distributed by the Nikkatsu Company. The story concerns the young hoodlum Akira, his friends, their transgressions and specifically their revenge on the couple that got him sent to jail, a reporter and his fiance. When the fiance finds herself pregnant by Akira she enlists his help with her finance who has become distant since the attack.
Criminal and jazz aficionado Akira Tamio Kawachi and his prostitute girlfriend Yuki Yuko Chishiro are arrested when they are spotted fleecing foreigners in a jazz club by a reporter named Kashiwagi Hiroyuki Nagato. In jail, Akira meets Masaru Eiji Go and on their release they and Yuki resume criminal activities. They spot Kashiwagi and his artist fiance, Fumiko Noriko Matsumoto, hit him with a stolen car and kidnap her. They take her to a remote beach where Akira rapes her while Masaru and Yuki fornicate in the ocean.Soon after, the three rent an apartment with money earned from fencing the stolen car. Masaru and Yuki commit to starting a family, while he joins a yakuza gang, to the derision of Akira. Fumiko tracks Akira down and informs him that she is pregnant. Kashiwagi has become distant and haughty and she pleads with Akira for help. Akira arranges for Yuki to seduce Kashiwagi so that the couple might again be on equal terms. Masaru is killed by a rival yakuza. Yuki discovers that she too is pregnant but without Masarus support she resolves to get an abortion and resume her prostitution career. Akira and Yuki meet Kashiwagi and Fumiko by chance at an abortion clinic where Akira reveals that each woman was impregnated by the other man, to the amusement of the former couple and befuddlement of the latter. ........
Source: Wikipedia