Futurechimp Theater, Halloween Edition: Living Dolls
Thanks to kindertrauma.com for turning me on to this. It certainly tops Building Sites Bite and Fur Coat Club in creep-factor.
Somewhat related: another short film, linked from the youtube page for this one, which I'd also never seen before. The Dummy, made in the same era as Living Dolls and similarly picked up by the USA network to screen in between movies in the early 80's, is definitely worth seven minutes of your time.