John Dennis Profumo was a British politician whose career ended in 1963 after a sexual relationship with the 19-year-old model Christine Keeler in 1961. The scandal, which became known as the Profumo affair, led to his resignation from the Conservative government of Harold Macmillan.

Christine Margaret Keeler was an English model and showgirl. Her meeting at a dance club with society osteopath Stephen Ward drew her into fashionable circles. At the height of the Cold War, she became sexually involved with a married Cabinet minister, John Profumo, as well as with a Soviet naval attaché, Yevgeny Ivanov. A shooting incident involving a third lover caused the press to investigate her, revealing that her affairs could be threatening national security. In the House of Commons, Profumo denied any improper conduct but later admitted that he had lied.