Ulrike and Larssen don't have much time: a second girl is missing. You must find the kidnapped child before he falls victim to the Rune Murderer. Ulrike has no idea that her brother Marc is becoming increasingly involved in the case and the strange girl Ingrid also seems to know more than she dares to say. Larssen, on the other hand, pursues his own goals. Can Ulrike really count on him?