If you liked this movie, you should also see: Grave of the Fireflies (1988)The Guns of Navarone (1961)Ricochets (1986)Red Cliff II (2009)Fortress of War (2010)
Kurt Gerstein—a member of the Institute for Hygiene of the Waffen-SS—is horrified by what he sees in the death camps. he is then shocked to learn that the process he used to purify water for his troops by using Zyklon-B, is now used to kill people in gas chambers.