A masked vigilante called the Black Knight begins stealing from the rich and giving to the poor. His popularity increases to the point where marches are being held for him in the streets. Andre begins spending an abnormal amount of time outside during the evenings, causing Oscar to suspect him of being the Knight. She starts attending every ball available, because that is where the Knight usually strikes. He does so one ball after Andre mysteriously disappears. Oscar chases him into Palais Royale, Orleans' manor, rumored to be an anti-monarchist meeting place...