A wager. An inconvenient love. A fortunate miscalculation that changes everything.

Andrew Langford is an honorable man. So it is deeply inconvenient when Sophie Renard, the woman he loved, appears at his door on the very day he’s reminded of a youthful wager that will cost the last unwed man a small fortune. She is beautiful, desperate, and, Andrew believes, married.

Sophie came to London for a prestigious mathematics position that she’s worked toward for six years. But after the promised job is withdrawn, she faces humiliating failure unless she can persuade her employer to reconsider. With no one else to turn to, she seeks help from her old friend, Andrew.

Andrew offers assistance where he can, determined to be nothing more than a friend. But proximity rekindles old feelings neither of them can afford, and Sophie’s charm and brilliance remind him why he once fell for her. As secrets unravel and the future threatens to pull them apart for a second time, they both must decide what they are willing to risk for love.