Two sisters grow up in Vietnam and are separated by the consequences of the conflict between North and South. After the fall of Saigon in 1975, Thao leaves the country with her uncle. Her barely older sister Sao Maï, stays with her parents. The separation lasts nearly 20 years during which the letters they exchange are their only link. They tell the story of their daily life, their memories, the war and its ghosts.
