 Juan and Pilar (Giménez Cacho and Toussaint) return to Mexico City on the same train. Destiny cross their paths in a taxi stop, off the train station. A taxi cab arrives and they take each other s baggage by mistake. After that, they spend two days looking for each other, trying to recover their stuff. In the meantime, Juan reads Pilar s diary and she listens to his thoughts recorded on tape. Love begins to grow between these two proper strangers.