And suddenly it seemed to me that light came from the windows. And then a cloud came upon the moon and hovered an instant like a dark hand before a face. The illusion went with it." Rebecca, by Daphne duMaurier. One of Hitchcock's first films.
Is that Joan Fontaine across the table from Hitch?
On a trip out of the country, Alfred Hitchcock was once asked what he did for a living. He replied, "I'm a producer." The man asked what he produced." <--- Love this quote/story and I always forget it!