Megan Phillips wakes up on the fourteenth hole. Her clothes are grass-stained, her back is aching, and the last two days are a total blank. She's not hungover – she doesn't drink – her mind has simply been erased. Desperate for answers, she turns to her puzzle-addicted neighbor, Gus Bilinski, a frustrated genius who spends his time learning Persian for fun. He refers her to an unorthodox psychiatrist, Dr. Henrietta Snooks, who believes the symptoms are unmistakable: Megan has been hypnotized. But who would want to hypnotize her? How has the hypnotist taken control of her, and what does he want her to do next? And most importantly, just what fun did she miss during her two days of amnesia? The answers, Megan fears, may cause her to lose what's left of her mind.