Kaspar Hauser is the son of the duke of Baden. At the age of one he was swapped by another baby that has been killed right after the change. The real Kaspar Hauser grew up in prison without light, social contacts and education for more than ten years. As teenager he came to public again. First he had to learn a language and other basic skills. Before Kaspar Hauser, meanwhile well educated, found out his real idendity, he was killed.