Premise: Half Moon Street is a 1986 British-American erotic thriller film about an American woman working at a British escort service who becomes involved in the political intrigues surrounding one of her clients. The film was directed by Bob Swaim, and stars Sigourney Weaver, Michael Caine, and Patrick Kavanagh.
Hypothesis: Half Moon Street is about a British woman who becomes involved in the political intrigues surrounding one of her clients.