When elderly Morey Gilbert is found lying dead in the grass by his wife, Lily, it's a tragedy, but it shouldn't have been a shock - old people die. But when she finds a bullet hole in his skull, the blood washed away by heavy rain, sadness turns to fear. It looks like an execution.
In this electrifying debut, the slaying of an old couple in small town America looks like one-off act of brutal retribution. But at the same time, in Minneapolis, teams of detectives scramble to stop a sickeningly inventive serial killer striking again in a city paralysed by fear. When the two separate investigations converge on an isolated catholic boarding school, decades old secrets begin to fall away. It seems an old killer has resurfaced. Yet still the killer's real identity remains dangerously out of reach ..