How far will you go to find out the truth? Jennifer Hunter is prepared to go all the way—well, almost. For the past two years, she has been working undercover as a “fidelity inspector,” hired by suspicious wives and girlfriends to test the faithfulness of the men in their lives. As she explains to her clients, “I don’t initiate anything. I only follow his lead.” Working under the code name “Ashlyn,” Jennifer has exposed hundreds of unfaithful husbands, fiancés and boyfriends. Of course, she never actually sleeps with any of them; she tests for an intention to cheat only. But while Ashlyn may be changing the lives of countless women for the better, Jen’s real life is quickly starting to unravel. Keeping her friends and family from finding out what she really does on all those “business trips” is proving more difficult every day and a string of unfortunate incidents leads her to believe that her secret identity is about to be exposed. Just when it seems like nothing is going her way, Jen meets a man who makes her think it may be time to retire Ashlyn willingly, for the sake of true love. But before she gives up her double life for good, she decides to take on one last assignment—-a job which will change everything.

Can a former fidelity inspector tear herself away from her old calling for the sake of the perfect guy, or is the temptation to conduct love under cover just too strong? Jennifer Hunter never saw herself as the relationship type. After all, she’d spent the last two years of her life as an undercover fidelity inspector, hired to test men’s faithfulness—not exactly the kind of job that lends itself to intimacy. But when Jamie Richards walked into her life, everything changed, and Jennifer vowed to trade in her undercover lifestyle for something more normal. That’s why she formed the Hawthorne Agency: five full-time fidelity inspectors, hired to carry out Jennifer’s mission while she manages the process from a safe (relationship-saving) distance. Jen's business is booming, and just when it seems like things can’t possibly get any better, Jamie proposes. Despite her lifelong issues with trust and commitment, Jen says yes. But can a woman who’s seen nothing but failed marriages ever come to terms with tying the knot herself? And when Jen receives a frantic phone call from one of her employees in trouble, she’s forced to make a choice. A choice that lands her in an all-too familiar place—a strange hotel room, kissing another man. And she knows that nothing will be the same.