One night in 1959, a boy is waiting to go on a camping trip with his father. His mother wants him to go to sleep. A family friend is trying to entertain them - or perhaps distract them. Because in the dark corners of this domestic scene, there are rustlings that none of the players want to hear. And out of things as innocuous as a shattered teapot and a ripped blanket, David Mamet recreates a child's terrifying discovery that the grownups are speaking in code, and that the code may never be breakable.