Twenty-four-year-old Catherine Fellingham keeps a low profile—in society and in her family. A practical young woman, she leaves the spotlight to her beautiful younger sister and prefers quiet pursuits such as reading. But all that changes the moment she learns of her mother’s very excellent scheme to keep the family out of debtors’ prison. The scatter-brained Lady Fellingham has been selling commissions in the king’s army, and Catherine must shake off her indifference in order to save her family from a potentially ruinous scandal. Lady Arabella, her mother’s partner-in-crime, readily agrees to abandon the plan but only because she finds a more absorbing project: nabbing a husband for Catherine.

Catherine pays no head to her ladyship’s lavish claim that she’ll have her engaged by the end of the season, but that’s before she overhears Arabella instructing the handsome nonpareil, the Marquess of Deverill, to flirt outrageously with her and bring her into fashion. Mortified, Catherine resolves not to be taken in by the charming marquess's cruel game—and even implements a very excellent scheme of her own. This sensible young lady seems to have everything well in hand. Or is she about to learn that her heart is a great deal less practical than her head?