After ten years of absence, Santiago Murray returns to Buenos Aires. Now he is a priest who is willing to assist the needy people of the neighborhood in which he grew up. Patricio Branca is a psychiatrist who is going through a deep crisis: he believes that he is not succeeding at helping people in need. In order to remedy this, he takes the extreme decision to "cleanse" society, killing those who he believes should die. Their paths will cross when Patricio, taking advantage of the "Seal of Confession", tells Santiago about the murders he committed.