Andrew Lincoln makes his long-awaited return to British drama in this twisted thriller about an ordinary man who finds himself in an extraordinary situation. John (Lincoln) secretly rages at his life as a middle-aged, stay-at-home dad. When his failure to intervene in a violent confrontation in a city playground brings his identity crisis to a head, John moves his family to the rural idyll of Coldwater.

On arrival, he is befriended by neighbour Tommy (Bremner), a charming, confident pillar of the community. John is impressed by Tommy. However, he is blissfully unaware that Tommy is harbouring horrifying secrets. When John’s long-repressed rage finally explodes with disastrous results, he finds himself unexpectedly indebted to his new friend. But how long will it take for him to figure out just how dangerous Tommy really is?