An aphrodisiac experiment on Shiori Mitsuki, who has never experienced an orgasm. She is made to drink an aphrodisiac that enhances sexual desire and is then successively confined in 'toilet,' 'closet,' 'wardrobe,' etc. The dark, narrow, and suffocating enclosed spaces stir up a sense of fear and sharpen sensitivity. Eventually, reason collapses! She succumbs to dangerous pleasure, screaming, going mad, and coming undone with an intense face of orgasm!
