It is the hottest August in living memory. A frightened girl bangs on a door. A man answers. From the moment he invites her in, his world will never be the same again. She will tell him about her family, and their strange life in the show home of an abandoned housing estate. The long, blistering days spent sunbathing; the airless nights filled with inexplicable noises; the words that appear on the windows, written in dust. Why are members of her family disappearing, one by one? Is she telling the truth? Is he? In a world where reality is beginning to blur, how can we know what to believe?