Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing.

I found this book to be a letdown. The plot was slow and painful. The story seemed too simplistic to be truly frightening or even slightly creepy. And the ending was extremely simple and anti-climactic. While one would expect Rosemary to have a terrible reaction to her baby, she instead calmly accepts the kid. Not very scary. I just wasn't impressed with this book.