"Joseph" (Peter Mullen) has just buried his dog in his garden on a council estate where many of his fellow residents are like him - angry, violent and full of despair. After being beaten up on the street, he takes refuge in a nearby charity shop where he befriends the lady who works there. "Hannah" (Olivia Colman) is a woman of deep Christian faith who sees good in everyone and when he begins to visit regularly, the two begin to bond a little. What he doesn't know, but we do, is that she is married to "James" (Eddie Marsan) and he's a nasty piece of work. His discovery of this quite shocking n...