Motoka, an intelligent adult psychology student, agrees to a repulsive middle-aged professor’s experiment in exchange for course credit. Alone in his lab, she is hypnotized unconscious, licked all over, and raped. Exploiting her lost memories, he repeatedly summons her and rewires her mind through sexual conditioning. The once-brilliant woman is made to lick his dirty face, armpits, feet, and asshole, serve him during sex, and finally obey his every command while climaxing obscenely and begging for more.