Incubi is a novel written by Edward Lee. It was first published in 1991.
Description[]
WAS IT A SEX-KILLER? OR SOMETHING WORSE? RITUAL FOR LOVE He promises them his love, then kills without mercy. Each seduction ends in death--each victim, murdered in bed. Detective Jack Cordesman has vowed to unravel the demented mystery, to enter the heart of a maniac's temptation...where desire demands the ultimate price. PASSION FOR EVIL The stranger beckons--the man of her dreams...or of her worst nightmares. Veronica Polk longs for love, but it isn't love that awaits in the strange, moonlit manse. Something evil broods, leading her blindly into a mire of erotic obsessions and savage desires. An unspeakable secret awaits--ancient, unholy--that thirsts for her spirit and hungers for her flesh... INCUBI They'll love you...to death.