Invader, The (London Enterprises Video)

Since I see other people creating topics like this too, I assume this is okay?
The very first porn I ever saw was in an adult films store when I was in freshman year of college, so sometime around late 1994-mid 1995. Only saw parts, can't remember the title or the cast. All I remember is that it involved a home invasion where a woman burglarized an apartment rented by three young women by claiming she was raising money for charity, then ambushing the women and tying them up. At first it was just two blonde girls, who she binds together with rope in the living room couch, and then I believe puts clothespins on their pussy lips. Then when the brunette third roommate shows up, the thief surprises her too, tying her with rope to the headboard in her bedroom, but not bothering to gag her, before placing clothespins on her nipples, and more in circles around her nipples. All of this is designed to compel these women to give up their financial information so she can take their money too.
Sorry, that's all I can remember. Not the most original idea ever, I realize. If anybody can help me remember the name of my very first porn, I'd appreciate very much!
EC