Jason King is a crime drama starring Peter Wyngarde as the flamboyant playboy investigator and author of his own fictional detective Mark Caine. Forced into working for the government over tax evasion charges by Sir Brian, King and his assistant set out on a series of adventures. However, it doesn't stop him from enjoying an extravagant lifestyle which necessitates fast cars, foreign travel and a bevy of beautiful girls. His publisher is the beautiful Nicola Harvester.