"In the thirteenth novel in the New York Times bestselling series, brilliant rogue police investigator Harry Hole is back, this time as an outsider assembling his own team to help find a serial killer. Harry has gone to Los Angeles to drink himself to death, in the wake of his life back in Oslo falling to pieces. He's nearly managed to, but then Harry decides to help an older film actress, Lucille, free herself from the grip of a drug cartel she owes a million dollars. In return she gives him shelter, company and a tailored suit. In Oslo, two girls have disappeared and been found murdered. One of the suspects is a well-known real estate magnate, and investigator Katrine Bratt wants to bring in the country's foremost serial killings expert. But the idea of collaborating with Harry Hole is out of the question for the chief of police. The real-estate magnate under suspicion, on the other hand, wants to hire Harry as a private investigator to clear his name. Harry declines, but that's before the drug cartel takes Lucille hostage. If Harry clears the real estate magnate, he will award Harry a bonus big enough to cover Lucille's debt. So Harry puts together his own kind of investigative team, consisting of a cocaine-dealing childhood friend, a corrupt police officer and a cancer-stricken psychologist. The drug cartel has given them ten days. The clock is ticking, and a blood moon has been forecast over Oslo.