When American writer Mark Halliday visits the very married Margot Wendice in London, he unknowingly sets off a chain of blackmail and murder.
Ray Milland
as Tony Wendice
Grace Kelly
as Margot Wendice
Robert Cummings
as Mark Halliday
John Williams
as Chief Inspector Hubbard
Anthony Dawson
as Charles Swann
Leo Britt
as Storyteller
Patrick Allen
as Detective Pearson
George Leigh
as Detective Williams
George Alderson
as First Detective
Robin Hughes
as Police Sergeant O'Brien
Jack Cunningham
as Bobby (uncredited)
Guy Doleman
as Detective (uncredited)
