Shinada has just moved alone into an old apartment, and his room is still a mess. One day, on his way to greet his neighbors, he witnesses his neighbor, Yuri, entangled with a man in a suspicious situation. In that moment, Shinada impulsively uses his hobby—photography—to secretly record the scene. That evening, when Shinada visits again to properly introduce himself, Yuri introduces the man beside her as her husband—someone completely different from the man he saw earlier. Shocked, Shinada gradually becomes obsessed with Yuri, who appears pure and innocent on the surface but hides a deeply sensual nature. What began as mere hidden camera voyeurism soon evolves into an overwhelming desire to physically touch her himself...