Cat on a Black Moon - Bennett, Lorraine Martin

Television anchorwoman Garner Olsen becomes the target of brilliant and deranged ex-flower child Darla Dare when Garner's husband, a federal prosecutor, prepares to take Darla's lover to trial for drug trafficking. When Garner's life is upended by stalking, kidnapping and murder, she vows to track down the woman responsible. She succeeds, but with shattering results.