Count Vane is rich, handsome, he has a dubious reputation, he changes lovers like gloves and has no intention of getting married. Isabella is a sophisticated and sensible girl. One day she sees a thief steal a snuff box from a man. Isabella takes her away and returns it to the owner, who turned out to be... Count Vane. The Count unexpectedly became seriously interested in the girl, but it turned out that Isabella’s sister, the beautiful Delia, was also not averse to getting such a gentleman. Isabella is happy for her sister, but in her heart she suddenly begins to understand that that this dissolute aristocrat is not indifferent to her. The girl almost forgot that before the trip to London she was engaged to an old family friend...