Highsmith debuted with Strangers on a Train (1950), a chilling exploration of doubling and murder that Alfred Hitchcock adapted into a classic film in 1951. She achieved lasting fame with The Talented Mr. Ripley (1955), introducing Tom Ripley, a charming, amoral con artist who became one of literature's most fascinating antiheroes. Ripley appeared in four subsequent novels, collectively known as the "Ripliad."
Under the pseudonym Claire Morgan, she published The Price of Salt (1952), a groundbreaking novel featuring a lesbian protagonist and a hopeful ending, later republished as Carol and adapted into an acclaimed film in 2015.
Highsmith's fiction is distinguished by its exploration of guilt, obsession, identity, and the darkness lurking beneath ordinary life, often blurring the line between criminal and victim. She spent much of her later life in Europe, particularly France and Switzerland. Her enduring influence on psychological suspense has cemented her reputation as one of the genre's finest and most unsettling writers.