Lisa Gordon, a trailblazing mathematics students and daughter of the city's long-standing mayor, meets an enigmatic stranger who ensnares her in a brilliant con.

After studying mathematics at Harvard and Yale, Lisa returns home to begin a prestigious PhD secured by her powerful father. Back in the city she once outgrew, she drifts toward the safe future expected of her—including a faltering relationship with her high school sweetheart, Matthew, who is hiding secrets of his own.

Then Bobby Mulcahy appears.

Older, charismatic, and brilliant, Bobby is everything Lisa respects: a gifted mathematician and decorated WWII pilot with a restless mind. He challenges her, unsettles her, and draws her into a world of ambition far larger than academia.

But Bobby isn’t who he claims to be.