The action takes place in a desert illuminated by a "dazzling light". The cast consists of just one man, who, at the start of the play, is “flung backwards” onto the stage. After he lands he hears a whistle from the right wing. He “takes the sound for some kind of call, and after a bit of reflection, proceeds in that direction only to find himself hurled back again. Next the sound issues from the left. The scene is repeated in reverse.” There is clearly no exit. He sits on the ground and looks at his hands.