A train crashes in the suburbs of Buenos Aires, leading forty-three people dead. A prayer card of Saint Expeditus, the patron saint of urgent matters, is left blowing above the wreckage. Hugo, a criminal on the run for murder, is also on the train. He seizes his chance to sneak out of the wreckage unsuspected, abandoning his possessions -- and, he hopes, his identity -- among bodies mangled beyond all recognition. The police suspect he's still alive,...