Wolfguy: Enraged Lycanthrope (1975)

Shinichi Sonny Chiba is WOLFGUY, the only survivor of a clan of werewolves who relies on his feral, full moon activated superpowers to solve mysterious crimes One night, a bizarre and bloody death in the Tokyo streets plunges him into a far reaching conspiracy populated by crooked politicians, naked white women, bit players like Hideo Murota, a phantom tiger, and best of all a shadowy organization