If "Gone Girl" captivates you, you're likely intrigued by narratives that dissect the dark underbelly of relationships and the masks individuals wear. Directed by David Fincher and based on Gillian Flynn's bestselling novel, "Gone Girl" is a 2014 psychological thriller that unravels the complexities of a modern marriage. When Amy Dunne (Rosamund Pike) mysteriously disappears on her fifth wedding anniversary, her husband Nick (Ben Affleck) becomes the prime suspect. As media frenzy …