After failing to intervene in a violent incident at a London playground, John moves his family to the rural Scottish idyll of Coldwater, where their new neighbors harbor a dangerous secret.
John struggles to cope with his guilt, but a bizarre hunting trip changes his perspective; Tommy's influence on him grows.
Tensions rise as John and Fiona are forced to attend the funeral of a beloved local resident; John's secret becomes dangerously close to being exposed.
John, full of regret over his friendship with Tommy, attempts to voice his suspicions to Fiona, who feels she needs space from John.