Christine wakes up every morning in an unfamiliar bed with an unfamiliar man. And every morning that man must explain that he is Ben, he is her husband; she is forty-seven years old; and a terrible accident two decades earlier decimated her ability to form new memories. But it's the phone call from a neurologist named Dr. Nash that directs her to her hidden journal. For the past few weeks, Christine has been recording her activities and rereading past entries, learning the facts of her life as retold by the husband upon whom she is completely dependent. As the entries accumulate, Christine finds herself asking more and more questions—about what she missed and what Ben might not be telling her...