Mara Delacroix, a beautiful Louisiana belle, is blackmailed into seducing Roderic, the gypsy prince of Ruthenia
Eventually she will be called on to betray him in some unnamed way. She pretends to fall in love with Roderic after stumbling into a gypsy camp where Roderic is staying. He in turn falls for her and takes her to Paris, where he installs her as his mistress. Together they entertain such luminaries as George Sand, Alexandre Dumas and Honore Balzac. By the time the blackmailer arrives to tell Mara how to betray the prince, however, she has fallen deeply in love with him!