Dr. Maximilian Pfeiffer, in his early 40s, divorced, is a judge. He is valued by his colleagues as a correct official and above all as a relentless pursuer of sex offenders. But he himself has a preference for underage girls. Schadewald couple, who has a marriage institute for clients with very special sex wishes plays him a videotape to please him. The video belongs to Marion, their lawyer and one of their clients. On the video her 13-year-old daughter Sandra can also be seen. He begins to take an interest in the teenage girl and steals the love of the mother to approach her. Sandra is pretty, intelligent and self-confident. Of course she likes her mother's new friend. She is fascinated by his dazzling manners, his looks and the authority. During a holiday in Spain, the repressed tendencies of the judge are increasingly gaining the upper hand.