Judith, Count Robert de Bertan's daughter, is on holiday with her friend Louise and her father Marquis Emile de Fers. Meanwhile, banker Charles Delcourt has introduced De Bertan to the owner of a gambling-and-dance hall, Olga Tatschowas. De Bertan, unaware that his banker has lost the capital he gave him to invest at Olga's gambling tables, falls in love with Olga. He marries her, unaware that he is the victim of a plot hatched by Delcourt and Olga, who desires a title and De Bertan's possession.