In an HLM in space, Mireille, a little girl, gets up at night, attracted by strange noises and lights.

Paris, France, early 19th century. The legendary convict François Vidocq lives in disguise trying to escape from a tragic past that torments him. When, after an unfortunate event, he crosses paths with the police chief, he makes a bold decision that will turn the ruthless mastermind of the Parisian underworld against him.