Grimm Love (original German title Rohtenburg) is a 2006 psychological horror film inspired by the Armin Meiwes cannibal murder case. Keri Russell plays Katie Armstrong, an American student in Germany studying criminal psychology. She chooses a notorious subject for her thesis: the cannibal killer Oliver Hartwin (played by Thomas Kretschmann). Oliver dreamed of eating a willing victim, and thanks to the internet, he was able to find a volunteer, a young man Simon Grombeck (played by Thomas Huber). The story is told in flashbacks as Katie researches these men and their pasts.