The Duke of Madrescart intends to marry his lovely daughter Loretta to the son of his friend. Not wanting to enter into a loveless marriage, the determined girl secretly flees to Paris, where she poses as a married lady. In cheerful Paris, she meets the Marquis Fabian, the fatal conqueror of hearts, who is about to open up a whole world of passion for her... But the old libertine insidiously kidnaps Loretta, and Fabian has to go through countless dangers to save his beloved. The path to happiness will be difficult...