I’m looking for a movie, in color, I believe a US film, from either the 70s or very early 80s, it may have also been a made for TV film or a cheap drive-in film. I cannot remember much about the film except that there was some type of demon monster in it and the protagonists either ended up in or kept going into another place (perhaps another dimension) and that when they were in that place everything was filmed through a red lens.