Amy Dunne is missing. The crime scene looks fishy. And, the investigation points straight at Nick Dunne, whose undemonstrative behavior makes him appear apathetic, and turns public opinion against him. The story alternates between Nick's and Amy's points of view. At first, Amy's chapters are told through journal entries, which directly contradict the thoughts and memories floating in Nick's mind, turning the whole book into a dark "he said/she said" mystery. I closed the book, hoping that I would never meet any of those characters in real life.
When a woman goes missing on her fifth wedding anniversary, her diary reveals hidden turmoil in her marriage, while her husband, desperate to clear himself of suspicion, realizes that something more disturbing than murder may have occurred.