When a seemingly unconnected boy and a bird researcher disappear without a trace, detective Judith Krieger is called to find them. As she and her colleague Manni Korzilius start their investigation, they uncover a dark network of misunderstood love, bullying, trust and betrayal, which takes them somewhere more sinister than even they could have anticipated. Drawn into the Canadian wilderness and the realm of a deranged suspect, the investigators feel they're close to finding the missing victims.

But is Judith on the right track?

And will she be able to uncover the truth - without risking her own life?