Valentino performs well in this historical romance portraying "The Duke de Chartres," who’s related to King Louis XV. He's known for being something of a dandy, but when the King arranges for him to marry "Princess Henriette" (Bebe Daniels), he runs off to London. There, pretending to be a barber ("Beaucaire"), he gets involved with the city's high-stakes gambling scene. After witnessing "The Duke of Winterset" cheat…