One day, 30-something office lady Riko falls head over heels for Kota, a new male employee seven years her junior, and kidnaps him to her home. Yielding to her desires, she confesses her obsessive feelings to him one-sidedly, then watches him restrained naked to a chair, indulging in masturbation. Kota resists and rejects her advances, struggling to escape, but as time passes, he grows increasingly exhausted, mentally and physically broken down. Riko's relentless determination and Kota's helpless state create intense, dramatic tension.