Tough, mysterious and laconic, Gagin, arrives in the border town of San Pablo, where they are preparing for the annual 'Mexican Fiesta,' His mission is to find the equally mysterious Frank Hugo, evidently for revenge; or is it blackmail? FBI agent Retz is also after the elusive Hugo. Everyone in town is enigmatic, especially Pila, a mystical teenager who follows Gagin around and has premonitions of his death.