It's even more reliable than Francois Truffaut's magisterial interview book Hitchcock, because Rebello interviewed the fat master himself, plus many Psycho insiders less cagey and truth-dodging than he.
At last, thanks to Rebello, we know all about the celebrated shower murder scene and all that swirls around it. Like Ernst Lubitsch, who conveyed the thrill of adultery by having the lovers open a door and cast their shadows on a bed, Hitchcock knew that, in film, artful discretion can be the most shocking effect of all. --Tim Appelo