Psycho is very much of it's time but I remember my mother...who saw it at the time of it's release telling me that the real shock was that the star was knifed in the shower and didn't make it to the end of the film. Hitchcock was as much a master of the unexepected as anything. If you want Hitchcock at his best for creepy horror, check out a little known film called 'The Tenant'.....one of his first forays in to the use of sound effects in film and inspired loosely by the legend of Jack the Ripper. Continuing on the theme of British horror/ thriller, surely 'Peeping Tom' deserves a mention. Scary no, but gruesome in content yes. The macabreness and ordinariness of the serial killer is something that film grapples with well. And yes I agree that Halloween has stood the test of time well and still stands up as a genre breaking piece of horror cinema. I think the same can be said of 'Nosferatu' too.