Junnosuke, a bureaucrat, and his wife, Masae—a couple whose relationship had long since gone cold. One night, while Junnosuke was away on a business trip, Masae was preparing to sleep alone in their quiet residential home when she discovered a stranger standing by her bedside. The man restrained her, ransacked the room, and then violated her with frenzied brutality. From the very next day, the man began to appear, relentlessly pursuing her...