On a house call, the therapist pulls a mysterious device from his bag... As it emits eerie vibrations, the women's bodies tremble and sweet moans fill the air. Though they question whether this is truly treatment, the women gradually surrender themselves to the therapist, drawn in by the device's unique pulsations. During the process, their genitals are stimulated, unleashing uncontrollable moans as they are enveloped again and again in pleasure. Under the strange, hypnotic effects of this enigmatic apparatus, the women's minds and bodies are slowly, completely set free.