Carl Morck used to be one of Denmark's best homicide detectives. Then a hail of bullets destroyed the lives of two fellow cops, and Carl--who didn't draw his weapon--blames himself. So a promotion is the last thing he expects. But Department Q is a department of one, and Carl's got only a stack of cold cases for company. His colleagues snicker, but Carl may have the last laugh, because one file keeps...

Carl Morck holds in his hands a bottle that contains old and decayed message, written in blood. It is a cry for help from two young brothers, tied and bound in a boathouse by the sea. Could it be real? Who are these boys, and why weren't they reported missing? Could they possibly still be alive?

Carl's investigation will force him to cross paths with a woman...

In the middle of his usual hard-won morning nap in the basement of police headquarters, Carl Morck, head of Department Q, receives a call from a colleague working on the Danish island of Bornholm. Carl is dismissive when he realizes that a new case is being foisted on him, but a few hours later, he receives some shocking news that leaves his headstrong assistant...