Miss Adeline Hayes is the perfect lady's companion: pleasant, conversational, and unceasingly proper. But when her closest friend, Charity Edgeworth, breaks off her arranged marriage without explanation, even Adeline's superior skills are put to the test. Charity's father banishes the two young women to the country, sending Adeline with a charge to find Charity a husband—or suffer dire consequences.

As Adeline takes on the role of reluctant matchmaker, she discovers more than one obstacle in her path. Not only does Charity prefer escaping in books to socializing, but Adeline soon finds her own attentions distracted by the standoffish—and irritatingly handsome—Mr. Evan Whitfield. Amidst an eventful foxhunt and the unexpected arrival of Charity's former betrothed, Adeline simply doesn't have time for a battle of wits with Evan. But the two are continually drawn together until Adeline begins to question her tightly guarded convictions about love and marriage.

However, when secrets are revealed and truths made known, Adeline must face her most fearsome obstacle yet: herself.