Charlie Simms is a student at a private preparatory school who comes from a poor family. To earn the money for his flight home to Gresham, Oregon for Christmas, Charlie takes a job over Thanksgiving looking after retired U.S. Army officer Lieutenant Colonel Frank Slade, a cantankerous middle-aged man who lives with his niece and her family.

Tom Ripley is a calculating young man who believes it's better to be a fake somebody than a real nobody. Opportunity knocks in the form of a wealthy U.S. shipbuilder who hires Tom to travel to Italy to bring back his playboy son, Dickie. Ripley worms his way into the idyllic lives of Dickie and his girlfriend, plunging into a daring scheme of duplicity, lies and murder.