Audiobook Black Notice: Episode 4, written by Lotte Petri. A couple of old yearbooks from a school in a posh suburb north of Copenhagen show a boy who looks eerily similar to the man with the strange eyes. But with the rest of Europe’s police focusing on border crossings and refugee camps, Felix is now on his own. He believes that the killer has a medical background, perhaps even an employee of Denmark’s largest hospital, Rigshopitalet, where the first victim worked and where the comatose woman was treated.