Highly Recommended The Movie: Dial M For Murder was Alfred Hitchcock’s 39th film and based on a stage play by Frederick Knott. The story concerns Tony (Ray Milland) and his wife Margot (Grace Kelly). They live together in a London apartment (where most of the movie takes place) but the problem is that Margot has been having an affair with Mark (Robert Cummings) for quite some time.
Excerpt from:
Dial M for Murder (Blu-ray)