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.

Jeanne Vaubernier (Maïwenn), a common girl eager to rise socially, uses her distinct charms to get out of her condition. Her lover, the Count du Barry, who is getting rich thanks to Jeanne's lucrative gallantry, wishes to introduce her to the King. He organizes the meeting through the intermediary of the influential Duke of Richelieu. This one exceeds his expectations: between Louis XV (Johnny Depp) and Jeanne, it's love at first sight... With the courtesan, the King rediscovers his taste for life - so much so that he can no longer do without her and decides to make her his official favorite.—First showing

Jeanne Bécu, a young woman born in humble circumstances, uses her intelligence and beauty to embark on a lavish career as a courtesan. Indeed, Jeanne quickly becomes a prominent boudoir queen, attracting wealthy lovers who vie for her affection. However, her newfound fame leads Jeanne to a royal audience with King Louis XV at Versailles, where she captivates him with her effortless charm. As a result, Madame du Barry becomes the monarch's favourite mistress, causing a scandal at the court and drawing the disapproval of the king's three daughters, who do not welcome the newcomer.—Nick Riganas