The Healers (1972)

Dr. Darby and his nurse use a revolutionary system of sexual healing called Orgasmic Free Flow at their clinic. This bold method of unorthodox treatment cures people of their physical and psychological maladies through the clinical application of sexual intercourse. Among the unusual patients Dr. Darby and his nurse treat are a neurotic opera singer, a compulsive crier, and a suicidal mute belly dancer.