Black Magic Sex Clinic(1987)

Dr. Nathan Soul is an expert psychologist who specializes in sexual dysfunction and is committed to helping his patients rekindle the magic in their sex lives. His controversial but effective methods usually end up with his patients having sex in his office for his final approval. But make no mistake, the good doctor is happily married and in love with his beautiful and sexy wife Sophia. When his wife's best friend Gail comes to him for help, the Doc's personal life and professional life collide as he and his wife team up to help their friend in need.