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.
Luc, doorman of the "Miramar"
André Duroc, reveler
Yvonne, André's mistress
Solange Duroc, André's aunt
James, maître d'hôtel
Alice, chambermaid
Marie-Thérèse, André's new love
Paratrooper
Sergeant
Seller