Teenager David (Nicholas Hoult – Skins, About A Boy) falls in love for the first time and life couldn’t be better. The only fly in the ointment is his 17-year-old brother, Ben, who has Down Syndrome. The family’s world revolves around Ben’s needs while David’s are unwittingly neglected by their parents. When they decide to move the family from London to “the back of beyond” for the sake of Ben’s education, David’s world is shattered. He loses love, friends and his school. His antipathy to Ben grows and grows to the point where he decides to push him off a mountain and get rid of him once and for all?