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, secrets and lies are revealed, leaving the readers questioning the truth and the motives of the characters. With its unpredictable twists and turns, Gone Girl is a gripping page-turner that explores themes of marriage, identity, and deception.