Soon to be the subject of a series adaptation from the producers of Killing Eve


'Brilliant visceral writing with terrific pace, this book grips you like a vice from the very first line and never lets you go' PETER JAMES

Someone is watching.

At each abandoned crime scene there's a hidden clue: a tiny metal cog. Someone is sending Detective Sam Berger a message, someone who knows that only he will understand the cryptic trail.

Someone knows.

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 message before time runs out.

Somebody is killing just for him.

This new series by international bestseller Arne Dahl sees Detective Sam Berger follow the trail of bodies, with a tiny cog left on each victim sending Berger specifically a cryptic message.