Death By Sarcasm works on many levels. It's a great detective story, it's got more one-liners than Henny Youngman, and it has a protagonist who does more shooting than Dirty Harry. It's another 99 cent winner.
Mary Cooper is a P.I. stranded in a family of comedians. She couldn't give a straight answer with a gun to her head, and she proves that more than once in this book. When her uncle is murdered behind a comedy club Mary's determined to track down the killer. The question is, will she find the killer before the killer finds her? Very highly recommended.