The Investigation (1965) is TV version of a play by German playwright Peter Weiss that depicts the Frankfurt Auschwitz Trials of 1963–1965.

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Main Cast: Horst Beck, Karl Bockx, Viktor Stefan Görtz, Hanns Gosslar, Hans Harz, Bum Krüger, Hellmut Lange, Kurt Lauermann, Peter Lehmbrock, Stanislav Ledinek

Director: Peter Schulze-Rohr

Writer: Peter Weiss

Editor: Helga Stumpf

Cinematographers: Bernd Eismann, Rudolf Körösi

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