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Nick and Amy Dunne are about to celebrate their fifth wedding anniversary when Amy disappears. The police suspect Nick of killing his wife. Amy's friends suddenly begin to tell her that she was afraid of her husband, that she had secrets from him. He swears that this is not true. However, the police check his computer and discover a very strange search history. Nick assures them that he had nothing to do with it, but can they believe him? And then there are those persistent calls to his mobile phone...

So what happened?

So what really happened to Nick's charming wife?