The shower scene was definitely inspired by the classic film "Psycho" (1960) where Janet Leigh's character is attacked and killed in the shower. Even the music in this film reminded me of the older film.
Mmmmmmmm yet another memory of my fantasizing of Beverly D'Angelo from my youth. I think I ruined the VHs pausing it to try and get the best shot. My o my what we did before the internet and Hamster