Country vet Deirdre Nightingale knows a swine when she sees one--whether human or animal. But a trip to New York City to learn about the common cat turns deadly when she witnesses a nightclub owner being gunned down by a bicycle messenger. The NYPD is on the case, but soon Didi has gathered more clues than cat hairs, inspiring a clever scheme that will either trap the killer--or be the end of her!