Set in New York City, Last Night is the story of a married couple that while apart for one night, confronted by temptation that may decide the fate of their marriage. Joanna (Keira Knightley
) and Michael Reed (Sam Worthington
) are 7 years into a successful and happy relationship. They are moving along in their lives together until Joanna meets Laura (Eva Mendes
), the stunningly beautiful work colleague whom Michael never mentioned. While Michael is away with Laura on a business trip, Joanna runs into an old but never quite forgotten love, Alex (Guillaume Canet
) and agrees to have drinks with him. As the night progresses and temptation increases for the couple, each must confront who they are inside and outside of their relationship. In the final scene, Michael goes back earlier to his wife and restates, truthfully, that he loves her. Joanna does not reply anything to it and from her sigh; the spectator understands she is actually in love with Alex. In the director's mind, this scene expresses two kind of unfaithfulness, body and soul, to which men and women are both, inclined on a different degree, suggesting that men are more often physically unfaithful and still deeply in love with their wives, while women are stronger in resisting bodily temptations, although they cannot control their heart. Last Night is ultimately a film about choices - the choice you make to be with someone, to give yourself physically and emotionally, and how to survive all three.