Enrique and Antonio are two neighbors who live in a duplex. One afternoon, Antonio is reading a book while Enrique is jumping on a trampoline, each one in his garden. With each jump, Enrique looks out over the dividing wall. This upsets Antonio, who rings Enrique's doorbell and asks him to stop. The discussion becomes heated, and the conflict that was insignificant at first becomes increasingly violent and unpredictable.