Goddamn (1991)

When yakuza member Okamoto (Hitoshi Ozawa) begins to search for Nami (Reiko Yasuhara), a woman he saw in an underground porn video, he finds himself on a path to his own destruction. Action film based on a manga by Takashi Ishii. Okamoto (Hitoshi Ozawa) is a low-level Yakuza making a decent living through the distribution of illegal porn tapes, he is devoted to his brother Moritani (Ren Osugi) but is disillusioned with his life and meandering through his everyday duties with little interest in anything. But that changes when a VHS lands on his desk of a young woman, Nami (Reiko Yasuhara), who is seemingly being raped in a deserted office building. He becomes obsessed with her and with no details on the tape, or its maker, he studies every minute detail in an effort to track her down