The Wolves (1971)

Seiji Iwahashi, a member of the Enoki-ya gang. He was recently released early from a 10-year prison sentence for killing the boss of rival Kan’non-gumi. However, he returns to find Kan’non-gumi and Enoki-ya finalizing the process of merging under the careful orchestration of a manipulative politician. Iwahashi tries to be as supportive of the new changes as possible, even when he’s passed over as new boss, but when a pattern of corruption and assassination is slowly revealed he can no longer sit back and let it continue.