Gotta love the telephone scene from 'Audition'
http://www.youtube.com/watch?v=azeK3-pv2CE
Ending scene from 'The Haunting' (can only find trailer)
http://www.youtube.com/watch?v=xq74oz6mf3w
The eyes in 'Suspiria'
http://www.youtube.com/watch?v=M6zJGUUiG0c
Ending to 'Requiem For A Dream'
http://www.youtube.com/watch?v=uuzNohk5cYw
I can do this all night, but I need to grab another beer :D