In Germany in 2002, a case came to light that shocked the world. A man in a rural German village had filmed himself dismembering, killing and eating another man. The culprit, Armin Meiwes was to become known as The Cannibal of Rotenburg.
Fred Dinenage travels to Germany to meet Armin's childhood friend Manfred Stück and asks leading experts on the case: What would make one man want to eat another?