I really enjoyed this book, one of Charlaine Harris' earlier works (originally published in 1984 - pre-Sookie, I believe). It was a quick read (or "listen", in my case) - it felt almost like a short story, though there was decent character development for a full-length book.
I liked how Harris had the characters work together to narrow down the list of subjects; it helped heighten the sense of suspense. And in the end I was surprised at the identity of the attacker, so Harris did a good job maintaining the suspense throughout.
I also appreciated Harris' handling of the subject matter, and telling the story from the victims' point of view. This made for a few rough (unsettling/disturbing) scenes, so readers, be forewarned. The writing is at times intense, emotional, and violent. Even in those scenes, however, I could appreciate Harris' skill, and literary turns-of-phrase.