Harry Hole reopens a bank robbery investigation linked to Sverre Olsen, only to uncover connections that pull trusted colleagues into the orbit of a dangerous conspiracy.

Harry Hole investigates a grisly murder while spiraling into alcoholism and pursuing a rogue colleague he blames for a partner's death, forcing him to navigate personal ruin and a terrifying new serial killer.

Harry Hole is pushed off a murder case and onto Lisbeth Barli's disappearance, but mounting clues, departmental hostility, and Tom Waaler's manipulations convince him that something far more dangerous is unfolding.

Harry Hole returns to hunt a sadistic killer leaving severed fingers and star shaped diamonds on mutilated bodies, while navigating a corrupt force and confronting his own destructive demons.

With evidence suggesting they're dealing with a serial killer, the police shift tactics and chase a promising lead as gang violence escalates across Oslo.

Unable to find a logical connection between the symbolism, locations and victims, Harry attempts a mind-bending method to crack the serial killer's code.

Patterns and riddles point Harry in the direction of the next possible murder. But is he finally one step ahead, or still chasing the killer's tail?

Harry closes in on the secret behind the murders, but as his worst fears surface, the cost of his relentless pursuit of justice becomes alarmingly clear.