Richard is an English visitor in Hamburg, at a loose end until he meets Helena, the beautiful niece of Margaret Wagner. Together they lead him down the road to bondage, slavery and transvestism. It's all so easy, so pleasurable - until he discovers Margaret's darker side, and the strength of her hold over Helena. His plans to rescue Helena are thwarted when Margaret gives him to another of her business acquaintances for further training. This time he'll learn the real meaning of submission and obedience.