Hell or pleasure, 24-hour sex! Masumi is a selfish housewife who has complete control over both her daily life and sex life. Her appearance exudes pheromones, and one after another men fall for her charm. After she sent her husband off, she imprisons a young man in the attic and spends her days having intense non-stop sex draining every bit of his youthful juices. Eventually, Masumi finds her husband a nuisance, and begins to plot a horrible plan to murder him for the insurance money.

When he is hit by a car on the street, the young man Daikoku foresees the monster Demking appearing at the end of the century. In preparation for the coming confrontation with the Demeking, he organizes a modern-day Seven Lucky Gods composed entirely of antisocial people. This is a utopian epic that, despite the ridiculousness of the story, is the most powerful depiction of the motifs seen in the first two films, which attempt to play on the sense of apocalypse through unrealistic imagination, while staying within a tenuous sense of reality.