A young Spanish girl develops an acute emotional crisis after her mother's death. When a letter written by the deceased mother surfaces, the grieving daughter departs to South America for answers.

Sofia is a young Spanish girl who, after her mother's death, develops an acute emotional crisis. An enigmatic letter falls into her hands, one that her mother sent to Chile when she was alive. The letter is returned by the post office when the recipient could not be found. The content of the letter raises stirring questions in Sofia, who then embarks on an adventure filled journey south of the world. The destination: An unknown and remote town called "Desierto Sur".—Claudia Gutiérrez Hernández