Sayuri and her husband invite their husband's superior, who lives in the same company housing. This man once had feelings for Sayuri during her school days and secretly watched her. A chance encounter rekindles his unfulfilled passion. While her husband lies unconscious from drinking, the boss seduces Sayuri. From then on, every time her husband goes to work, he appears at her home, subjecting her to twisted, depraved torment. The story depicts Sayuri being swallowed by an endless whirlpool of carnal desire.