November, 1935. Harry Kvist walks out the gates of Langholmen jail into another biting Stockholm winter. He has nothing to his name but a fiercely burning hope: that he can begin a new life with the lover he met in his cell. That he can leave behind his old existence of gutter brawls, bruised fists and broken bones. That he can finally go straight.
But the city has other ideas. Nazis are spreading their poison on the freezing streets, and one of Kvist’s oldest friends has been murdered. Before he can leave Stockholm’s underworld for good, he must track down the killer. As Kvist uncovers a trail of blood leading to the highest echelons of Swedish society, the former boxer finds himself in a fight to the death with his most dangerous opponent yet.