There Aren't anymore MacBanes was definetly one of the scariest episodes of Night Gallery. Although I cannot remember exactly what it was completely about, I do remember that there was this witchy looking creature at the end and the guy and one of his friends got killed by it. There was also a cameo by a youung Mark Hamill (Luke Skywalker).
The witch creature scared the crap out of me, so to speak. I love the episodes of Night Gallery that have monsters in them, that is really what I look for in a horror TV show. I've seen this one twice, great episode.