Arno Strobel's thrillers all have one thing in common: they are so gripping that you can't put them down. Chief Inspector Max Bischoff can't believe his ears when the head of the forensic psychiatry clinic in Langenfeld calls him to share important information about a current case. A case that presents nothing but puzzles for Max Bischoff and his partner Horst Böhmer. An unknown assailant, who hides his face behind a fly mask, seemingly randomly breaks into homes at night. He overpowers the residents and leaves only one survivor each time. And a message: "Tell it to the others." Now comes the call from the Langenfeld psychiatry. Siegfried Fissmann, one of the patients there and a convicted murderer himself, accurately predicts these murders. Bischoff has no choice but to engage with Fissmann if he wants to prevent more people from dying. Even if it means pushing himself to the limits of his mental endurance. A true Strobel with a familiar strong psychological component and the tough young investigator Max Bischoff, whose second case takes him deep into the abysses of the human soul.