Fifty years after his exile in France, Robert’s past, as a mixed-race child from Indochina, has caught up with him. He decides to go back in time to try to understand why he was never allowed to know his French father and to piece together the reasons he was separated from his Vietnamese mother when he was ten years old. As Robert searches for answers, the film sheds light on an obscure episode in French colonialism, and which the Republic referred to then, as the handling of the mixed race problem. In the course of his journey across France and Vietnam, Robert discovers that the tragic fate of a Vietnamese woman in times of colonialism is met with collective amnesia, creating a nearly impossible quest. A film about blood ties, national identity, the sheer weight of domination and the personal wounds created by a nation at war, Born Under Z is a heroic, deeply moving film and a door to the past of what really happened to one of nearly 5,000 children.