Jeri Halston should be working on Wall Street, not in a forgotten old bar in Flagstaff. But for reasons she keeps to herself, the brilliant twenty-six-year-old prefers bartending at Joe's Last Stand Saloon to climbing the corporate ladder. When Jeri starts receiving letters from an anonymous admirer, she's intrigued by their exotic postmarks and her writer's cryptic rants. Even more intriguing are the included photos of her admirer, none ever revealing his full identity. Posted in the saloon for all to see, the letters remain a harmless mystery - until a zealous Homeland Security agent stumbles upon a link between the letters' places of origin and the untimely deaths of several top energy scientists around the world.

As the letters grow more personal, Jeri soon realizes that her anonymous pen pal intends to drag her into something far more dangerous than a friendship. And there's no marking "Return to Sender" on this nightmare.