"The Leftovers," a novel by Tom Perrotta, explores the aftermath of a mysterious event where 2% of the world's population suddenly disappears. The story unfolds in a small town grappling with loss and the resulting chaos. The residents must navigate their grief while the world outside continues to change, showcasing their struggle to find meaning in a situation that defies explanation. The narrative focuses on key characters like Kevin Garvey, the town's mayor, and Nora Durst, a woman who lost her family in the event. Their personal journeys reveal how people cope with trauma and the search for connection amid despair. The book delves into themes of belief, community, and the impacts of existential crises on everyday life.