Hitler's Madman is based on an all-too-real wartime atrocity. John Carradine portrays Heydrich, the vicious SS officer put in charge of Nazi-occupied Czechoslovakia. Heydrich is killed by the Czech underground, prompting the Nazis to plan a horrible retaliation. The Gestapo selects the Czech village of Lidice for annihilation: They kill all the male villagers, throw the women a...