Sam Berger Series

At each abandoned crime scene there's a hidden clue: a tiny metal cog, almost invisible to the naked eye. Someone is sending Detective Sam Berger a message, someone who knows that only he will understand the cryptic trail. When another teenage girl disappears without trace, Sam must convince his superiors that they’re dealing with a serial killer. As the police continue the hunt to find the latest victim, Sam is forced to unearth long-buried personal demons. He has no choice if he is to understand the killer's darkly personal message before time runs out.

It starts when Desiré Rosenkvist of Stockholm Police receives a letter. Two things are immediately clear: the letter she holds in her hands was written in a state of utter desperation and paranoia. And it contains details of one of her old murder cases which only the murderer could know. Desiré contacts private investigator Sam Berger, who sets off to the remote north of Sweden with his colleague Molly Blom to find the author of the letter and to stop them in their tracks. But someone wants to keep them from getting to the bottom of the mystery at any cost and is watching their every move.

Detective Inspector Sam Berger's life has been turned upside down. He is suspected of a murder and his partner, Secret Service agent Molly Blom, is in a coma. Meanwhile, a terrorist attempt is threatening Stockholm and a wanted murderer is on the loose. Berger escapes to the Stockholm Archipelago while he waits for orders from the Swedish Security Service's chief executive. But is he the solution, or is he part of the problem?