Gone Girl by Gillian Flynn is a psychological thriller novel published in 2012. It became a bestseller and was later adapted into a critically acclaimed film in 2014, directed by David Fincher and starring Ben Affleck and Rosamund Pike.
 
The story follows Nick and Amy Dunne, a seemingly perfect married couple living in Missouri. On their fifth wedding anniversary, Amy mysteriously disappears, and suspicion quickly falls on Nick. As the investigation unfolds, shocking secrets about their marriage come to light, revealing dark psychological twists and unreliable narratives. The novel is known for its gripping storytelling, alternating perspectives, and unexpected plot twists.