At her husband's recommendation, Rika begins frequenting massage parlors, where she falls into the trap of forbidden pleasure… What should have been pure relaxation gradually becomes a prisoner of uncontrollable lust due to the therapist's skillful techniques and aphrodisiacs. Though she feels guilty for her husband's tenderness, she cannot resist her growing desire. With each massage, her behavior becomes more extreme and addictive! Spasms and incontinence from orgasms develop into a distorted body with all its erogenous zones, resulting in repeated facial ejaculation and orgasms! When her husband witnesses Rika's complete depravity, their peaceful daily life quietly, and undeniably, crumbles.