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While haunted by memories of a failed arrest that allowed the Ripton Stalker to remain free, retired detective Inspector Huw Miller becomes suspicious of his enigmatic new neighbour Patrick Harbottle.
Huw retreats to a remote home, but serial killer Patrick tracks him down from prison.
Patrick intensifies his psychological assault on Huw and Margot.
Jenny races to uncover the truth, realising that Patrick is orchestrating an ambush - and Huw is walking straight into it.
Huw tracks Patrick to the abandoned farmhouse where a devastating truth is revealed and Patrick delivers a final cruel masterstroke.
