"Smiley's People" is a spy novel by John le Carré that follows the retired intelligence officer, George Smiley. After years of quiet, Smiley is drawn back into the world of espionage when a former agent is murdered. He must navigate a complex web of deceit and betrayal to uncover the truth behind the killing. As Smiley investigates, he encounters a range of characters, including old allies and new enemies. The story delves into themes of loyalty, morality, and the shadows of the Cold War, showcasing Smiley's sharp intellect and deep understanding of human nature as he seeks justice in a treacherous world.