Adam Elliot and Grace Douglas are childhood sweethearts just back from their honeymoon when they are brutally murdered.
Their devastated families in the remote Scottish Highlands find their world further turned upside down when the murderer turns up on their doorstep the night after the killing.
He's had a car crash in a raging storm, is badly injured and he needs shelter. As the families search for answers, skeletons are unearthed and old wounds reopened. Everyone has secrets, but as the lines between right and wrong become blurred, how will this group cope with the deadly consequences about to unfold?
One Of Us, BBC1, 9pm
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