Paris within the Nineteen Twenties. Marguerite Dumont is a rich girl with a ardour for music and the opera. For years, she has carried out frequently for a circle of friends. However Marguerite sings tragically out of tune and nobody has ever instructed her. Her husband and her shut buddies have all the time inspired her in her illusions. Issues turn out to be very sophisticated the day she will get it into her head to carry out in entrance of a real public, on the Opera.