DI Sam Clayton is called to a murder scene in the Norfolk town of Holt, not expecting to find his estranged sister at the scene. Her husband, Henry Lambton, has been murdered. Clayton is taken off the case and DS Julie Everett continues the investigation.
Clayton focuses on a vicious arson attack in Norwich. The fire killed a Polish family in their home. It seems to be part of a series of racist attacks connected to an extremist group.
The two crimes stretch the team and both come dangerously close to home. Can Clayton forgive his sister for what happened over twenty years ago?