Dressed to Kill (1980)

Brian De Palma's 1980 psychological thriller "Dressed to Kill" opens with Angie Dickinson alone in a shower, a scene that sets up the murder plot to follow. The sequence runs long enough to show her fully nude before the story shifts into its suspense. CelebMasta has that shower scene up as the single clip from the film, letting viewers skip straight to it without sitting through the rest of the runtime.