Hi, I am looking for the title of a paperback horror novel from the late 70's early 80's.Plot is many decades early there was a troubled wealthy family living in a house in this rich vacation community. One night they are all murdered.Many decades later in the present day a family (husband and wife and two kids - Daughter is a bit wild, son is an evil nerd) come to stay in the same house. The husband has an affair with the nanny whom the son assaults later. The son and daughter sleep together.And then they all get murdered like the first family. The murderer is actually a nun who was the illegitimate daughter of the woman (mother) killed in the first murder. She hates the depravity of this community.The cover art was looking up at night outside at a lit window in a big mansion. Thanks
WHAT DREAMS MAY COME...  Mulberry is a three-story Victorian in the Hamptons, the perfect summer retreat for the Bradley family. Forty years ago a family was murdered in the house. Now, the bloodstains have been washed away, and the grisly killings are just a chilling local legend. But something unseen still waits in the shadowed hallways and antique furnished bedrooms.  F WHAT DREAMS MAY COME...  Mulberry is a three-story Victorian in the Hamptons, the perfect summer retreat for the Bradley family. Forty years ago a family was murdered in the house. Now, the bloodstains have been washed away, and the grisly killings are just a chilling local legend. But something unseen still waits in the shadowed hallways and antique furnished bedrooms.  For psychiatrist Bert Bradley, his wife Alice, budding teens Stacey and Richard, and innocent five year old Lissie, the summer begins with days at the beach and neighborhood cocktail parties. But all is not right in Mulberry. The cellar door won’t stay closed. Lissie wakes screaming with night terrors. Strange, vivid dreams spread like a contagion to all the Bradleys.  The sins of the past have never left Mulberry; they are slowly spinning a web around the unsuspecting family. Shocking secrets will soon be revealed and the innocent will be drawn inexorably towards a night of terrifying bloodshed.  DISTURB NOT THE DREAM ...more