Protagonist engineer who serves four years in prison for his fiancée's crime. Upon release, he faces societal and familial rejection, leading to despair. He is rescued by Emma, assists her and her brother Gustav after a crime, rebuilds his life as a factory manager in Düsseldorf, and returns to Berlin to bid a final farewell to the dying Emma.
Robert actively shields Gustav during the police chase.
Emma intervenes to prevent Robert's suicide.
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