On the night of the gala performance for the old manager's retirement, Christine is called upon to sing in the place of the Opera's leading soprano, Carlotta, who is ill, and her performance is an astonishing success. The Vicomte Raoul de Chagny, who was present at the performance, recognises her as his childhood playmate, and recalls his love for her. He attempts to visit her backstage, where he hears a man speaking to her from inside her dressing room. He investigates the room once Christine leaves, only to find that there's no one else in the room
