Gone Girl

is a faithful adaptation of Gillian Flynn's novel of the same name, which is not a surprise given that she also wrote the screenplay.  The movie, like the book, is a beautiful construct with an unusual and complex plot that ultimately makes us consider the darker side of relationships.  Ben Affleck and Rosamund Pike deliver excellent performances; in fact, the entire cast does a very good job.  David Fincher directs with a sure and creepy hand.  Everything works well. 

Of course, by being such a faithful rendering of the novel, the movie shares with the novel a profound weakness:  The more you get to know these characters, the less you care about them, and the more appalled at their behavior you become. 

If you haven't seen the movie or read the book, I don't want to spoil either for you, so I'll stop by saying that I recommend either or both for the skill of their construction, but don't blame me if you walk away afterward not at all happy with any of the characters.