Dial M for Murder
"I Confess" was followed by three colour films starring Grace Kelly: "Dial M for Murder" (1954), "Rear Window" (1954), and "To Catch a Thief" (1955). In "Dial M for Murder", Ray Milland plays the villain who tries to murder his unfaithful wife (Kelly) for her money. She kills the hired assassin in self-defence, so Milland manipulates the evidence to make it look like murder. Her lover, Mark Halliday (Robert Cummings), and Police Inspector Hubbard (John Williams) save her from execution. Hitchcock experimented with 3D cinematography for "Dial M for Murder".