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After failing to intervene in a violent incident, a man moves his family to an idyll town where their neighbours harbour a secret.
John struggles to cope with his guilt, but a bizarre hunting trip changes his perspective as Tommy's influence on him grows.
Tensions rise in Coldwater as John and Fiona attend the solemn funeral of a beloved local resident, and Tommy and Rebecca are thrown into a panic.
John - who is full of regret over his friendship with Tommy - attempts to voice his suspicions to Fiona, but she feels she needs space from John.
John and Fiona try to work out a plan, but differ in their opinions. Tommy finds himself in a troubling situation after a tour group stumble upon something sinister.
After the discovery of the box, John and Fiona go to dangerous lengths to ensnare Tommy.
