A husband who has loved small spaces since he was a child, would take paid leave and hide in the closet without his wife knowing, spending time alone to relax. One day, the husband witnesses his wife bringing a man into their home and engaging in intense, creampie sex. More excited than angry, the husband gets an erection and hides in the closet from then on, spying on his wife. Meanwhile, the wife continues to invite the man over frequently, unknowingly watching her husband, and becomes addicted to her affair with him, even deep-throating him in the kitchen. However, the husband secretly contacts the man and, in exchange for turning a blind eye to his affair, offers him a condition.