Clara Immerwahr Clara Immerwahr and her husband to be Fritz Haber are both young and gifted chemists. Their struggle for acknowledgment in nationalistic Germany during World War I lead to the development and use of the first chemical weapons. Details Casts Title Clara Immerwahr Release Date 2014-05-28 Runtime 01 Hours 30 Minutes Genres Drama History Production Companies ARD Production Countries Germany Katharina Schüttler Clara Immerwahr Maximilian Brückner Fritz Haber August Zirner Philipp Immerwahr Steffi Dvorak Lotte Immerwahr Elisabeth Orth Großmama Immerwahr Simon Schwarz Otto Sackur Philipp Hochmair David Sachs Wolf Bachofner Siegfried Haber Peter Simonischek Rektor Engler Adele Neuhauser Fräulein Knittel Uwe Bohm Friedrich Lucas Gregorowicz Prof. Abegg