It's 1963, and Alison Wilson returns home to find husband Alexander dead. Soon afterward, a woman arrives at the door, claiming to be Alec's 'real wife.' Alison embarks on a mission of discovery to try and find out who her husband was, but from their wartime romance to a mysterious period in India, it soon becomes clear that Alec died holding his secrets close to his chest.

On the occasion of his fifth wedding anniversary, Nick Dunne reports that his wife, Amy, has gone missing. Under pressure from the police and a growing media frenzy, Nick's portrait of a blissful union begins to crumble. Soon his lies, deceits and strange behavior have everyone asking the same dark question. Did Nick Dunne kill his wife?