The Hundred-Year-Old Man Who Climbed Out the Window and Disappeared, written by Jonas Jonasson, is a hilarious comedy-drama novel that follows the extraordinary adventures of Allan Karlsson. On his 100th birthday, Allan decides to escape from his nursing home and embarks on a journey filled with unexpected encounters, dangerous situations, and a suitcase full of cash. As Allan's past intertwines with historical events, the novel offers a humorous and satirical take on life, friendship, and the pursuit of happiness.