Alias the Doctor

Karl is the workaholic adopted son while Stephan is lazy. Both go to Munich to study medicine, where Karl tops the class and Stephan barely passes. Stephan's actions cause Anna's death, but Karl takes the blame and serves three years in prison. Upon release, he finds Stephan dead and operates brilliantly on a sick child. Noticed for his skill, Karl's mother reveals he is actually Stephan Brenner, not Karl, and tells him he must cure sickness in the world. However, as Stephan, he can no longer marry Lottie, who is now his sister.