You have probably seen the movie. It's a good story, but a bit slow and not that exciting. If you are looking for a BETTER book, check out We have always lived in the Castle, also by Shirley Jackson.
This author was amazing at the slowly-developing thriller. However, there are some younger authors who have surpassed her.
The basic story is a professor has rented out a creepy house and is bringing 'sensitive' people to stay in it to see what happens. The main character is a bit of a mystery and you will find yourself wishing that her background was the focus of the story.