After "Les Enfants du Soleil" in which ferdinand Faure, a young actor from Aix-en-Provence arrived in Paris and received his sentimental education at the hands of Clémence, our hero now tackles the terrible hardships of stage training. Indeed, poor ferdinand finds himself up against Ariane, Ariane the Great of the Cartoucherie Theatre. The actors all do improvisations in Commedia dell'arte masks. Between the distress of Bruno who can't manage to "get into" the troupe and the insistence of Ariane who urges all the masked actors to step beyond their private defences, something crazy, funny and desperate emerges : the Golden Age !