High on a lonely mountain top, a mysterious masked man kidnaps a group of hikers, brutally pushing one victim off the edge of a cliff. When inspector Jennerwein is called, he discovers that he knows all the hostages personally – from his school days. Might he know the murderer as well? Is the case connected with his own past? While his team looks for motives in old yearbooks and hunts a mysterious geo-cacher, the retired undertaker couple Grasegger is on the trail of a truly explosive secret. Inspector Jennerwein is investigating on shaky ground…
