Detective H. Grímsson is no stranger to death. When he was 19, an avalanche killed his parents and younger siblings. Since then, he has faced death himself many times. To others, Grímsson appears almost as a thing out of some legend: 6'4" tall and built like a wrestler, with a permanent scowl and wiry, rust-colored hair, wearing a long black leather coat that makes him less approachable than the Creature from the Black Lagoon. But he is a city detective, and a damn good one at that, owing much to what he calls his uncanny intuition. However, that's only half the truth of it-detective Grímsson is clairvoyant and frequently sees the grim shadow of death before it approaches. This intimacy of death has saved his skin in the past, but it is not a gift he bears lightly. When it comes to other people and his personal life, Grímsson can be as charming as a troll and as functional as a car with no steering wheel. But when it comes to solving a murder, he won't let go...

Evil is at large, again... A young college student is found dead in his BMW on a gravel road not far from the city. He was shot at close range. Grímsson suspects that this has something to do with the nudes that the deceased had in his possession. In August, the deceased and his two college friends were at a party in a small town in western Iceland where a young girl died from a drug overdose. Is there a link?

A few days later another college student is found shot dead in his car. This second victim was also at the party. The friends of the deceased are silent as a grave but Grímsson is sure they know something but are afraid to talk to him. What he doesn't know is that a selected group of college students have received anonymous messages from a sinister social media page called Deathbook. Deathbook is playing a dark and dangerous game. It asks the students to give it a name of a person who is making their life miserable. A few days later, the person they name is found dead. Soon after, they get another message-and only then do they realize that they are caught in an evil web they cannot get out of...