Crimes
2006 · Teleplay
Amityville II: The Possession
1982 · Writer
The Beyond
1981 · Mob Member (uncredited)
A Bay of Blood
1971 · Story
Demons
1985 · Screenplay
The House by the Cemetery
1981 · Screenplay
City of the Living Dead
1980 · Story
The Cat o' Nine Tails
The New York Ripper
1982 · Screenplay
Demons 2
1986 · Writer
Aladdin
1986 · Story
The Ogre
1988 · Writer
Killer Crocodile
1989 · Screenplay
Night Shift
1987 · Writer
The Last Hunter
1980 · Screenplay
Shock
1977 · Screenplay
Exterminators of the Year 3000
1983 · Story
Tulpa - Demon of Desire
2012 · Screenplay
