In a monolithic, cryptic chamber, 50 stranger wake to happen themselves trap with no memory of how they got there.They rapidly larn that every two proceedings, one of them must die… execute by a unusual device in the centre of the room. At first, the attack look random, but shortly the stranger recognize that they, as a grouping, have got the powerfulness to make up one's mind who will be the following to be kill. A ballot. A opportunity to command the machine. But how can they take who deserve to die? And what happen when there’s merely one individual leave?