Arsène Lupine is much more than a character of a novel. Maurice Leblanc is an author who lives in the shadow of the success of the character he created. Suspected of complicity in a theft of jewels at the Louvre, the writer appealed to the one who had served as a model to create his hero. Despite their differences and their disagreements the two men will have to team up in the Paris of the Roaring Twenties, Germany of the rise of Nazism, and Egypt of the tomb of Tutankhamun.