Housuke Atami is dating Shizuka, the hottest girl in school, but it's just a platonic relationship. He and his friend Shinohara channel their frustration into secretly videotaping the girls' locker room. One day, they meet a mysterious girl of striking beauty; around the same time, the school is rocked by rumors of the "ghost" of a former beauty queen student. Shizuka notices a radical change in Housuke's behavior and makes up her mind to follow him.
The beautiful Shizuka Himanoki has been saving herself for a boy she met twelve years ago. They made a promise back then, and she's determined to keep it. But when she finally tracks him down, she catches him in the act with another woman. Where can a nineteen-year- old virgin turn for solace?
A bellboy stalks a woman who frequents the hotel where he works.
Manami, the sole survivor of Angel of Darkness 2, is rushed to hospital where she slips into a deep sleep. A priest correctly suspects that the demon (now referred to as an Injuu) is inside Manami's body, but by the time he is able to confirm his theory, the creature has already moved on. As before, the tentacled beastie passes from host to host (by thrusting its slimy appendages into its victims' orifices), eventually ending up inside goody-goody schoolgirl Fumie, who does her best 'Linda Blair' impersonation for a while, before the priest inevitably turns up to save the day.
