The author of the Harry Hole series now gives us a stand-alone novel set amid Oslo's hierarchy of corruption, from which one very unusual young man is about to propel himself into a mission of brutal revenge. Sonny Lofthus, in his early thirties, has been in prison for the last dozen years: serving time for crimes he didn't commit. In exchange, he gets an uninterrupted supply of heroin -- and the unexpected stream of fellow prisoners seeking out his uncanny abilities to soothe and absolve. His addiction started when his father committed suicide rather than be exposed as a corrupt cop, and now Sonny is the center of a vortex of corruption: prison staff, police, lawyers, a desperate priest, all of them focused on keeping him stoned and jailed, and all of them under the thumb of Oslo's crime overlord, the Twin. When Sonny learns some long-hidden truths about his father he makes a brilliant escape and begins hunting down the people responsible for the hideous crimes he's paid for. But he's also being hunted -- by the Twin, the cops, and by the only person who knows the ultimate truth that Sonny is seeking. The question is, what will he do when they've cornered him?