Nemesis (, meaning carefree, the name of a street in Oslo in which the novel character Anna lived) is a 2002 crime novel by Norwegian writer Jo Nesbø, the fourth in the Harry Hole series. Synopsis During a bank robbery in Oslo, a lone robber holds a teller hostage and threatens to kill her unless the ATM is emptied within 25 seconds before the police can arrive. When the transfer takes 31 seconds, the robber executes the hostage and flees. The case goes unsolved until a police video evidence expert, Beate Lønn, surmises from the footage that the robber and the hostage knew each other. Lønn and Inspector Harry Hole are assigned to the murder investigation. Further robberies occur in the same way, but the hostages meet the robber's specified time limit and are spared. While Hole's girlfriend Rakel and her son Oleg are in Moscow, Hole is invited to dinner with an old girlfriend named Anna Bethsen, a flamboyant painter. The following morning, Hole awakens in his own apartment with a hangover and no memory of the night before. Later that day, Anna is found dead of an apparent suicide. Seeing that the gun is not in the right hand, Hole believes that Anna was murdered and that the scene was staged. A photograph found near her body suggests the involvement of a rich businessman who may have been Anna's lover. Hole conceals evidence of his presence in Anna's flat, unable to prove that he himself is not the killer, and believing that he is being set up for the crime. Learning that Anna was Romani, Hole enlists the help of her uncle, an imprisoned bank robber named Raskol, to get his insight into the robberies in exchange for solving Anna's killing. Hole receives illegal payments from Raskol to fund the investigation. Further evidence, on top of Raskol's suggestions, send Hole and Lønn to find a robbery suspect hiding in Brazil, only to find him hanging from a beam in his home. Back home, Hole receives e-mails from Anna's killer, signed "S2MN". Following the murder of Anna's wealthy former lover at the hands of Raskol's henchmen, Detective Inspector Tom Waaler, Hole's adversary, learns of Hole's visit to Anna, leading to Hole finding himself on the run. Hole forwards the incriminating e-mails to Lønn as evidence of his innocence. However, forensics determines that the e-mails were sent on time-delay by