You can't remember the name of the book or the author how can you find this in the library?

I am trying to find a book about a woman who

thinks her lover is a vampire. She and her ex-boyfriend plot to

kill him. One night her ex hides in the closet and waits for her

lover to appear. He waits for the lover to disrobe and then attacks

him. After they kill him, they try to take the body out to the

desert to try to find a burial place. On the way to the burial

place their plans are thwarted by several unexpected events. This

is a "must read" book, if only I could remember the name of

it!!!