The Lodger and the seeds of style

Blackmail

Number 17: The birth of the MacGuffin

The 39 Steps and a legion of spies

Sabotage

3 + 1 by Daphne DuMaurier

Shadow Of A Doubt

Lifeboat and two WWII shorts

Cary Grant, Ingrid Bergman and . . .

Rear Window

Vertigo

Strangers On A Train

Psycho

I Confess, The Wrong Man, Frenzy, Murder