Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great psychological horror novel

Too bad this book from novelist/screenwriter William Goldman has fallen out of print. This is great psychological horror that reads fast (most of the book is dialogue) and has some genuine creepy moments. It's a kind of combination of Jekyll & Hyde meets The Tell Tale Heart mixed with magic and ventriloquism. It seems a mixed bag, but it works.If you like the other horror books of the '70's -- The Other; Rosemary's Baby; The Exorcist; Carrie -- then you'll like this one. I've read people complain that this is like a long Twilight Zone episode, but since when is that a bad thing? The jekyll and hyde theme is one of the most basic in all of literature. And creepy dolls are SCARY! Try to find this at your local library, used book store, or garage sale. It's a great weekend read.