1987 novel by Kurt Vonnegut (9)
I believe the answer is:
bluebeard
(Other definitions for bluebeard that I've seen before include "Be durable (anag) - wife-murderer" , "serial wife-killer" , "murderous character" , "Fairy-tale character who murdered six wives and hid bodies in locked room" , "Legendary polygamist and wife-killer" .)