When 30 year old Sarah becomes a mother, she decides to break the omertà imposed by her father on her family's past. During the Algerian war, her grandfather fought with the French against the independence of his people. When France lost, the whole family escaped to Marseille... But there, instead of being welcomed, they were locked-up in a camp. This is where Sarah's journey begins... Unveiling what France has tried to keep silent for decades.