After years of searching, Ramirez, a former soldier tormented by his conscience, manages to track down his former army sergeant, Zúñiga, under whose cruel orders he served as a guard at a prisoner camp in the desert after the military coup of 1973. Over some drinks, Ramírez forces Zúñiga to recall a violent past that he believed he had left behind, unaware that the seemingly cordial reunion is part of Ramírez's plan to take revenge on him for the sake of his victims.
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