Patricia Highsmith was an American novelist and short story writer widely known for her psychological thrillers, including her series of five novels featuring the character Tom Ripley. She wrote 22 novels and numerous short stories throughout her career spanning nearly five decades, and her work has led to more than two dozen film adaptations. Her writing derived influence from existentialist literature, and questioned notions of identity and popular morality. She was dubbed "the poet of apprehension" by novelist Graham Greene.

Tom Ripley is a fictional character in the Ripley series of crime novels by American novelist Patricia Highsmith, as well as several film adaptations. He is a career criminal, con artist, and serial killer. The five novels in which he appears—The Talented Mr. Ripley, Ripley Under Ground, Ripley's Game, The Boy Who Followed Ripley, and Ripley Under Water—were published between 1955 and 1991.