Was no problem at all.
I saw
The Intruder Within when I was a boy and it scared the hell out of me.
In recent years I remembered it and have been trying to track down a copy.
It was a made for TV movie and as far as I know, it's been out of print for years.
Not an easy title to find.
Check out the IMDB page here:
http://www.imdb.com/title/tt0082565/