Wow! What a difference...
I just finished reading the book (Sliver) by Ira Levin, who wrote Rosemary's Baby and The Stepford Wives. The book is so much better than the movie that I can't believe they changed the plot so much! There's so much more suspense and all of the characters actually make sense. I highly recommend the book, even if you do like the movie.
"It's the story of my life. I always get the fuzzy end of the lollipop."