Reynaldo “El Piedra” Salgado is a boxer who works as a “bait”: he fights without having the chance to win. One day Breyder, a boy eager to box who claims to be his son appears in his life. Father and son are forced to live together. Reynaldo finds someone who makes him feel useful again, and Breyder learns to admire the father who makes sacrifices and not the supposed champion. A different glance over the “sport of flat noses”.