Paris in the 1920s. Marguerite Dumont is a wealthy woman with a passion for music and the opera. For years, she has performed regularly for a circle of guests. But Marguerite sings tragically out of tune and no one has ever told her. Her husband and her close friends have always encouraged her in her illusions. Things become very complicated the day she gets it into her head to perform in front of a genuine public, at the Opera.

1892, Saint Petersburg. Sasha, a young Russian aristocrat, has always been fascinated by her grandfather’s life as an adventurer. A renowned explorer, he designed a magnificent arctic ship, but he hasn’t returned from his last expedition to the North Pole. To save her family’s honor, Sasha runs away. Headed towards the Great North, she follows her grandfather’s trail in search of his famous ship.