After seeing his life fall apart, Harry goes to Los Angeles to disappear from everyone and everything, even from himself. However, no matter how hard he tries, he realizes that he cannot escape from himself. When an elderly actress, Lucille, who is trying to escape from a drug cartel to which she owes $1,000,000, crosses his path, Harry has no choice but to help her. In return, she offers him shelter, her companionship, and a well-tailored suit.

Back in Oslo, two missing girls are found murdered. One of the suspects is a famous real estate mogul. Katrine Bratt wants to seek help from the man who knows serial killers better than anyone, but the police chiefs categorically refuse to cooperate with Harry Hole. On the other hand, the suspect real estate mogul wants to hire him as a private investigator to clear his name. Harry refuses, but when the drug cartel kidnaps Lucille, he faces a dilemma: if he accepts the mogul's offer, he will be able to pay off Lucille's debt.

He has only ten days. Time is running out and a blood moon casts its light over Oslo.