The inveterate rake and womanizer Duncan Pennethorne, Earl of Sheringford, outdid himself and found himself at the center of a loud scandal that outraged London society. Now Duncan must get married as soon as possible, otherwise he will be deprived of all rights to a substantial inheritance. Well, what girl would agree to connect her life with such a man! Only the old maid Margaret Huxtable, who does not have a single chance left to make a decent match. However, in response to the marriage proposal, Margaret puts forward an ultimatum to Duncan: she will become his wife and save his reputation only if the count manages to win her heart before the wedding. Enviable firmness. But can this stop a man who can seduce even the most unapproachable beauty?