Gone Girl, written by Gillian Flynn, is a thrilling urban mystery fiction book that takes place in a small town in Missouri. The story revolves around the disappearance of Amy Dunne on her fifth wedding anniversary. As the investigation unfolds, the lines between truth and lies become blurred, and the reader is taken on a rollercoaster ride of suspense and psychological twists. With its clever plot twists and well-developed characters, Gone Girl is a must-read for fans of urban mystery fiction.