Arne Dahl’s A Unit has been disbanded for the last two years. When a wave of brutal murders hits Polish nurses in Sweden, the National Police see their chance to instate the unit again. Kerstin Holm, previously a member of the A Unit, is assigned to lead them.
The A Units official role in the police force is to investigate complex, violent crimes with international connections. Kerstin builds her team with former members of the unit Nyberg, Chavez, Svenhagen and Söderstedt, but she is assigned a new recruit as well, somewhat reluctantly - Ida Jankowicz, a wiry, yet powerful, rookie with exceptional language skills.
Paul Hjelm, previously a key figure in the A Unit, has been promoted to a job as head of Internal Affairs. At first, he and the A Unit are pretty far removed from each other, but their paths will cross sooner than any of them could imagine.
