Paris, 1894. Every year, on the occasion of the Carnival, a big and popular ball is held in the mental institution of La Pitié Salpétrière. Politicians, artists and social figures flock to the doors of this women-only institution, eager to attend the famous Party of Fools. Among the patients, Fanni. Unlike the other women who are interned unjustly against their will, she is here voluntarily. Her only goal: to find her mother and escape together.源自：