Arno Strobel's thrillers all have one thing in common: they are so gripping that you can't put them down. Sebastian Fitzek. Commissioner Max Bischoff is worried about his sister Kirsten, who has not felt safe for weeks. A stranger is watching her, knows where she is, and sends her threatening messages. And then the worst happens, something Max has always feared. The stranger takes Kirsten captive and wants to force Max to sacrifice himself. If he doesn't, Kirsten will die. Max Bischoff finds himself in the worst hell imaginable. Should he save his own life or that of his sister? A true Strobel with a familiar strong psychological touch and the tough young investigator Max Bischoff, who must make the worst decision of his life in his third case.