Infiltrating a girl's home as a private tutor, he secretly observes her daily life through cameras. Covertly installing multiple hidden cameras, he meticulously records her every move. Once alone with his student in a private room, he begins forcing excessive physical contact. Noticing her weak resistance, he grows increasingly bold in his actions. An abnormal sexual relationship unfolds beyond the boundaries of common decency. Watching her innocent demeanor, his desires spiral out of control. A series of acts in the secluded room expose his deviant nature.