What have you seen?

Last week on French TV, Hitchcock's "Rear window" (1954) was broadcasted. I've seen it a few times now, as they broadcast it every now and then: it's a classic, isn't it?

Yet it's the first time I realise it's building on a theme familiar to the giallo amateur : the idea of the eye-witness' credibility.

One of giallo's central questions : can you believe what you've seen? Can you trust your eyes?
A question we'll get back to more often than we think.

(Remember, it's already there in "The bird with the crystal plumage")