In WWII Germany, a chemical engineer and SS lieutenant is shocked to learn that the Zyklon B he helped develop to purify drinking water will be used to exterminate concentration camp inmates. After telling his story to a Jesuit priest, the pair attempts to warn the priest's Vatican superiors─and the world─of the Reich's horrific plans. Based on a true story, cinematic political suspense master Costa-Gavras' compelling drama stars Ulrich Tukur, Mathieu Kassovitz, Ulrich Mühe. 132 min. Widescreen (Enhanced); Soundtrack: English; Subtitles: English (SDH). Filmed in English.