First mysteries

THE KILLER'S WIFE, Bill Floyd, St. Martin's Minotaur.  $23.95

Six years after her ex-husband is sentenced to death for a series of gruesome murders, Leigh Wren finds herself being stalked by the father of one of her ex's victims.  Then a new killer emerges whose methods are very similar to those of the man who is on death row thousands of miles away.  Leigh begins to investigate, but when the identity of the new killer is finally exposed, the truth turns out to be as twisted as it is devastating.