I liked this, but wanted there to be more to it. I think Matheson isn't as successful here as Jackson's The Haunting of Hill House (to compare a haunted house to another) in some aspects because he appears to consider sexual violence as the ultimate horror when it can often seem so commonly exploited in fiction as to be banal rather than tense and shocking. While this book is absolutely not a waste of time, it's not exactly action-packed, surprising, or narratively fulfilling.