Indochina, 1945. Robert Tassen, a young French soldier, joins his brother Henri in Hanoi. During an attack by the Japanese, Robert is the only survivor of a massacre and witnesses the execution of Henri and his wife, who was pregnant. Blinded by vengeance, Robert engages in a solitary and secret quest to find the assassins. But his meeting with Maï, a young Indochinese prostitute, will change his beliefs and his hatred.