This Should Have Been An Adaptation of Robert Bloch's Novel "Psycho II"!
I've always thought they missed a great opportunity with this film by not making it an adaptation of Robert Bloch's novel, "Psycho II". Anyone who's read the book will know what I am talking about, because the way the film "Psycho II" (which wasn't based on Bloch's novel) ended would have been an awesome lead-in to this if it had been an adaptation of Bloch's book.
But, sadly, this was turned into disgusting slasher trash, ugh.