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.
Ulrich Tukur
as Kurt Gerstein
Mathieu Kassovitz
as Riccardo Fontana
Ulrich Mühe
as SS-Arzt
Michel Duchaussoy
as Kardinal
Marcel Iureș
as Papst Pius XII.
Ion Caramitru
as Graf Fontana
Friedrich von Thun
as Gersteins Vater
Antje Schmidt
as Gersteins Frau
Günther Maria Halmer
as Pastor Dibelius
Hanns Zischler
as Grawitz
Sebastian Koch
as Höss
Monica Bleibtreu
as Mrs. Hinze
