Shortly after their wedding, Rika cherishes every private moment with her husband. One day, when her husband returns home from work, his boss arrives to deliver a forgotten item. Unable to ignore his superior's kindness, the husband invites him to stay for drinks. That night, while the husband sleeps, the boss makes a move on Rika. Witnessing the act, Rika feels overwhelming shame and rushes to wash her body, yet finds herself drawn to the boss's charm—soon giving in to masturbation. Unable to forget him, she gradually falls under his spell. One day, suspecting his wife's infidelity, the husband pretends he won't go to work the next day, setting a trap. From inside the closet, he witnesses his wife and her boss in the act. Overcome by betrayal, he awakens to an otherworldly sexual desire and takes unexpected action.