As a Swedish citizen is found dead at Newark, an American serial killer is on the plane to Stockholm. Sneaking past the police, killings soon start to happen in Sweden as well and after working with FBI, the Swedish police start to piece together an unsettling and complex image.

An African refugee is shot by the police. A husband and wife are killed and their son is still missing. Another body is found in a luxurious appartment.

Arne Dahl - Misterioso A failed robbery attempt at Sydbanken outside Avesta leaves one robber lying dead with a dart through his eye, but there are no witnesses to the incident and no perpetrator is ever identified. In Stockholm, three high-profile businessmen are assassinated in a short period of time, and Jenny Hultin of National CID is assigned the task of putting together a special team to solve the case before the assassin strikes again.