Films Sirius Movies

France, 1880. Francois Roquevillard is a respected lawyer in Chambery and the head of a family that prides itself on its impeccable morals. Francois's world rapidly begins to fall apart when his son Maurice elopes to Italy with Edith Frasne, the wife of an esteemed notary.

André Duroc pretends to be a duke in order to extort money from Aunt Solange. But his trickery is discovered, he must flee and, thanks to a uniform, takes part in the great maneuvers.

To protect him, Georges takes the place of his twin brother, Jacques, suspected of murdering an aircraft manufacturer and stealing the plans for a revolutionary engine. He sets out to compromise the police investigation and the actions of the document smugglers seeking to recover the plans.