The Berlin commissioner Nils Trojan and his team find themselves in a true nightmare as they feverishly investigate a serial killer case. Three victims have been found dead in their apartments in quick succession, murdered in a grotesque and brutal manner – and with each passing hour, Trojan fears he will be called to another crime scene. Then, suddenly, two little girls go missing, and Trojan can't shake the feeling that there is a connection between the cases. Both children spoke of a "witch" that terrified them shortly before their disappearance. And upon seeing the bodies, Trojan involuntarily thinks of a well-known children's fairy tale...