Female investigator Mao Hamasaki undergoes a humiliating physical examination, including inspection of her body orifices, to infiltrate a corporate front for a drug syndicate. After successfully gaining entry, she is captured by the enemy and subjected to brutal torture. Stripped of her sanity through belly punches, slaps, and drug injections, she is forced into masturbation. Drooling and dripping vaginal fluids, her leg is hoisted up as her thick ass is whipped, her neck choked, and she is pushed into rape. Bound in a spread-eagle chair, a vibrator is shoved inside her, an electric massager makes her squirt, and electro-torture brings her to foam at the mouth, scream in agony, and lose consciousness. Finally, she is gangbanged by two men in a merciless threesome, receiving creampie after creampie—two times in total.