does anyone know this?

Maybe someone can help me. In the early 80's I saw a movie (can't remember the title, or anyone who was in it), that may have been made in the 70's. Basic idea is that a group of thugs invade a home with a gathering of some middle class folks. I know, it could be any number of movies, but some scenes stand out in my memory. I hope I'm not combining scenes from two different movies. In one scene two or more topless women are hanging (by their arms) from a chandeliar. In another scene, the main bad guy (I don't think it was David Hess, but it's the kind of role he did back in the day) forces one of the male victims to his knees, then unzips the pants of one of his cohorts, implying that the the victim is going to be forced to perform oral sex on him. I also seem to remember a scene where a child comes out of a room at the top of the stairs, and one of the thugs opens up on the kid with a machine gun.

I would appreciate it if anyone could tell me the name of this movie. It's been sticking in my memory for years. I realize taht if I ever find the movie, it'll probably turn out to be junk.

Thanks.