U.S. film from the 80’s. I believe the movie starts out on the set of an action movie being shot. The main male characters are either stuntntmen, or actors. From what I remember, there were 3 male characters that were these actors or stuntmen. They go to a cabin with 3 female characters, probably girlfriends. The scene I remember most is one of the female characters is seen on the television in the cabin. She is being filmed by a camera in a barn near the cabin everyone was staying in. The woman is tied to a chair and has a clear plastic bag on her head struggling to breathe. They run to check the barn, but no one was there. Eventually later on, they find her in the barn with the bag on her head, I believe she was still alive. I have no idea the name of this film, and have been using Google With no luck. Please provide suggestions if you think you may know. Thanks