Jenny Crowley has been duped! At her eighteenth birthday celebration her parents announce that instead of having the London Season she's dreamed of for years, Jenny has been betrothed from birth to Alexander Isley, son of family friends and heir to a title. A distraught Jenny refuses point-blank to marry Alec, and when her aunt offers to whisk her away to a Christmas house party, complete with many eligible young bachelors, Jenny jumps at the chance to enjoy a variety of entertainments, be courted, and perhaps fall in love.

Alec Isley is between a rock and a hard place. He desires a marriage with Jenny no more than she does, but when his family's dire financial status is revealed, he follows Jenny to the house party in hopes of convincing her to marry him after all. When he discovers who else is courting her there, Alec is frantic to keep her from making a dreadful mistake. Struggling with new-found feelings for his childhood friend, can Alec convince her of his love in time to save her from being ruined under the mistletoe?