Betty Ann Green is a beloved culinary icon...who doesn't exist. She is the brilliant, beautiful illusion created by two unlikely collaborators. Behind the façade is Quincy Lazzaro, a culinarily challenged writer whose witty, sharp prose is the public face of Betty, while those flawless, genius recipes are all thanks to his octogenarian neighbor, Mary Ticarelli. When the arrogant diet guru, Dr. Alan Tolzer, inventor of the Westport Diet, demands a face-to-face interview, Quincy reluctantly steps in as Betty's frontman, only for Tolzer to drop dead. The police call it natural causes, but Quincy knows better. He sees it as the investigative break he's been waiting for. Now, caught between a crime-solving grandma, a no-nonsense detective girlfriend, and a killer who may be one step ahead, Quincy must unravel the mystery before the killer strikes again.