两年前，年幼的男孩达里霍被报失踪，两年后，他的尸体重见天日，经法医鉴定，达里霍生前有可能遭受过非人的折磨。经验老到的首席警官拉兹（马克思·雷迈特 Max Riemelt 饰）和他的搭档萨琳娜（娜佳·鲍比列娃 Nadja Bobyleva 饰）负责调查此案，在解决这起迷雾重重的案件之前，两人必须磨合他们针锋相对的性格。 达里霍的父亲成为了案件的最大嫌疑人，这个可怜的男人精神走到了濒临崩溃的边缘。随着调查的深入，达里霍悲惨的身世让和他有着相似经历的萨琳娜再度陷入了回忆和痛苦之中——在萨琳娜6岁那一年，她的母亲在母女两人流亡的路途中惨遭杀害。

Vienna, 1920. The Austro-Hungarian Empire has collapsed. Peter Perg returns home from the Great War, after seven years as a Russian POW. Vienna is experiencing the multiplicity of political, social and artistic freedom, but also the rise of anti-democratic movements, insecurity and unemployment. Peter, a former police inspector, feels like a stranger in the new Austrian Republic. While wanting to leave town, Peter is confronted with the murder of one of his former comrades. He decides to stay and instead bring the killer to justice. His ally is Dr. Theresa Körner, a determined and cool-headed forensic doctor. The two are linked not only by this case, but also by a deeper, shared history. As their investigation progresses, they realise that they are not just up against a systematic killer, who tortures his victims, but also face disapproval and intrigue from within the police force. Though determined to solve the crime, Peter, harbouring his own secrets, increasingly becomes tormented by existential questions: What is truth? What is heroism in the time of war? And all the while he fails to see the mounting danger before him.

When she is slightly hurt in the factory where she works, Iris quits her job and finds a new one as an assistant in a laboratory of a very peculiar kind. Without fully grasping what is at play around her, she gradually engages in a disturbing love affair with her enigmatic employer.

Three activists cobble together a kidnapping plot after they encounter a businessman in his home.