Death Flats

A research psychiatrist specializing in near-death experiences, Jack Bishop has just experienced his own very final death at the hands of an unknown murderer. His wife, Kate, was Quin St. James's best friend in college. Now, she's the prime suspect in her husband's murder. But turning to Quin and McCleary for help brings them all nearer to death.
Quin knows that Kate is innocent, and she and McCleary dig deep to prove it. But all they find is shocking evidence that Jack Bishop was leading a secret life of drugs, orgies, and something far more deadly. As Quin and McCleary close in, the killer begins to cover his bloody tracks the way he knows best: with corpses . . . .
"MacGregor whips up a great lather of suspense." The New York Times Book Review