Dolores (Alice Braga), una despreocupada brasileña estudiante de arte que vive en San Diego, y Damián (Diego Luna), un joven y místico periodista mexicano, cruzan sus caminos cuando Dolores se dirige al sur con unos amigos a un antro de Tijuana. Un pasaporte perdido une a los dos protagonistas; durante el viaje con destino a Ciudad de México la pasión se enciende... pero un secreto que Damián guarda puede separarlos para siempre.
R
(Under 17 requires accompanying parent or adult guardian 21 or older. The parent/guardian is required to stay with the child under 17 through the entire movie, even if the parent gives the child/teenager permission to see the film alone. These films may contain strong profanity, graphic sexuality, nudity, strong violence, horror, gore, and strong drug use. A movie rated R for profanity often has more severe or frequent language than the PG-13 rating would permit. An R-rated movie may have more blood, gore, drug use, nudity, or graphic sexuality than a PG-13 movie would admit.)