Today, France has more than 60,000 prisoners. After years of incarceration, some are still claiming their innocence. Miscarriage of justice: an injustice, a bad twist of fate which each of us could all face one day - Simply being present at the wrong place at the wrong time to be charged with a crime we did not commit. In each episode of this series, the discovery of a new element that creates doubt about the guilt of the accused party revives the investigation. Revisions of controversial trials that challenge the court by plunging into the past of a case thought to be definitively resolved. At the heart of these cases, Marie Valmont, a woman with a heart who swapped her cop outfit for that of a judge. Far from being haughty and disconnected from reality, Marie loves the field investigation and does not hesitate to move heaven and earth, against the will of her peers, so that the truth can be restored and that justice is done.—Happy_Evil_Dude