Gone Girl, written by Gillian Flynn, is a thrilling mystery that explores the complexities of a troubled marriage. When Amy Dunne goes missing on her fifth wedding anniversary, all eyes turn to her husband, Nick. As the investigation unfolds, the lines between truth and lies become blurred, and the reader is taken on a rollercoaster ride of twists and turns. Flynn's masterful storytelling and well-developed characters make this book a must-read for any mystery lover.