Midori Wakamatsu

Komori Chiaki is a budding tennis student. However, one day while training, her coach hits a ball into her eye on accident. At the hospital, the news that she will never regain the sight in her eye leaves her heartbroken. As a last resort, she undergoes a costly surgery from the mysterious doctor known as Black Jack, where after a successful operation, a mysterious figure starts to emerge in her vision, and only she can see it.

Factory worker Osamu (Akira Sakai) has been despondent ever since he saw his girlfriend getting gang-raped. He has a difficult time thinking of anything else. Meanwhile, his boss asks him for a favor. Apparently, the bossman’s son is too-o-o serious about a girlfriend, Yuki (Minako Mizushima). The boss wants the relationship destroyed and asks Osamu to arrange an “unforgettable situation.” Osamu and his friends stalk the lovers to a secluded vacation house where rape delirium erupts (although Osamu isn’t capable of participating). A bit later the boss and two women show up, presumably to check on the results. But Osamu’s gang is completely unhinged from the assault and they attack the newcomers, turning the place into a sexual hell.