In the autumn of 1944, during the Liberation of Brittany, writer Louis Guilloux worked as an interpreter for the American army. He was a privileged witness to some little-known dramatic aspects of the Liberation: the rapes and murders committed by the Gi’s on French civilians. He also discovered the racism of American military justice. This experience haunted the novelist for thirty years. In 1976, he recounts it in a short novel: “Ok, Joe!”, which goes unnoticed. This film confronts his story with the memories of the last witnesses to these forgotten crimes and their punishments.