![The Deathmaker](https://image.chilimovie.com/region2/en/300px/20230705/1BaHXGZB7UTNWylELBz0DkjIs31.jpg)
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Fritz Haarmann, who has killed at least 27 boys, is questioned by a psychology professor in order to find out whether he is sane and can be held responsible for his crimes. During this interrogation Haarmann reveals his motives and his killing methods.