Xavie, an idealistic filmmaker, takes a motley film crew and two experienced actors in a country house, to shoot a film without a script, following chance, as A. Einstein understood it: "Coincidence is God's way of remaining anonymous".
The life of Jeanne Bécu, who was born as the illegitimate daughter of an impoverished seamstress in 1743 and went on to rise through the Court of Louis XV to become his last official mistress.