"The Shower Scene"

The Scene

Alfred Hitchcock spent seven days filming what would become the most analyzed scene in cinema history. Janet Leigh stands under the shower, unaware that Norman Bates approaches. What follows is a masterclass in suggestion over explicit violence - we never actually see the knife penetrate skin, yet the rapid montage of 78 setups and 52 cuts creates an illusion of brutal murder.

Bernard Herrmann's shrieking violin strings became inseparable from the imagery. Hitchcock broke every rule: killing his star 47 minutes in, showing a toilet onscreen (a first), and proving that horror's greatest weapon isn't what we see, but what we imagine.

The technical precision of the sequence is staggering. Hitchcock used chocolate syrup for blood (it photographed better in black and white), and a body double for some shots. Janet Leigh later admitted she could never take showers again after filming, only baths - and always with the doors locked.