Polish socialist and Marxist Rosa Luxemburg works tirelessly in the service of revolution in early 20th century Poland and Germany. While Luxemburg campaigns for her beliefs, she is repeatedly imprisoned as she forms the Spartacist League offering a new vision for Germany.

This film, chronicling the last days of Czech resistance fighter Maruska Kuderikova (played by Magda Vasaryova), is based on her diaries. Though she was tortured and eventually executed by the Nazis, her diaries indicate that she was optimistic for the humanity of her captors and did not by any means hate them. Told with simple dignity, this film makes clear why Maruska became a national hero.