Berlin Commissioner Nils Trojan and his team are faced with a mystery when three victims are found with mysterious messages carved into their skin. Trojan is under pressure, as it’s only a matter of time before the next murder occurs. Then, his worst nightmare comes true - he receives a call from a young woman who claims to be the daughter of the "Feather Man," the infamous serial killer who had severely injured him years ago and escaped. To his horror, she swears that her father is still alive, and Trojan senses that the hour of retribution has come...