Academy Award winners Grace Kelly and Ray Milland star with Robert Cummings in one of Alfred Hitchcock's greatest thrillers - Dial M for Murder. When playboy tennis pro Tony Wendice (Milland, The Lost Weekend) discovers his rich wife, Margot (Kelly, Rear Window, To Catch a Thief), is having an affair with handsome American Mark Halliday (Cummings, The Carpetbaggers), he devises an ingenious plot to murder her. But when his scheme takes an unexpected, deadly twist, Tony improvises--implicating Margot for first degree murder in this classic spellbinder. Based on the play by Frederick Knott.