The death of her sister has haunted Ana since her childhood. Ana has returned to Tijuana, her hometown, where she will have to fight this fragmented, cloudy and painful memory.

Tells the parallel stories of nine-year-old Carlitos and his mother, Rosario. In the hopes of providing a better life for her son, Rosario works illegally in the U.S. while her mother cares for Carlitos back in Mexico.