This book was on my list for quite some time, and it was worth waiting for. Christine is a middle-aged woman who loses her life’s memories when she falls asleep at night. Every morning she wakes up in a bed with a man she doesn’t know (her husband Ben), in a house she doesn’t recognize (her home). Ben, through the use of photos and relaying bits and pieces of their life together, tries to make her happy. A new doctor, who Christine is seeing in secret, encourages her to keep a journal (he calls her every day to tell her where the journal is hidden). Each day, as Christine reads her journal, she sees discrepancies between what Ben has told her about their life and the bits of her life that she starts remembering.