My friend Carol introduced me to this made for TV thriller. It's creepy and has a slow build, but a great pay-off. Joanna Redwine is hired by the dysfunctional Benedicts as a housekeeper. As she settles in to the home she begins to manipulate the family members, encouraging Liz's (Patty Duke) drinking, trying to seduce Jeff (William Shatner) and while daughter Tara (Quinn Cummings) initially loves her, she begins to hate her as she sees how Joanna is using them. All along, next door neighbor Dr. Lindquist (John Housman) is observing Joanna and starts investigating her past. What will he discover, and will it endanger him and the Benedicts?
Though not available on DVD, this HBO production was released on VHS and is still available on Amazon. It can also be seen on YouTube in its entirety. The whole film is above, uploaded by TVTERRORLAND.
Obscurity factor: 9 (on YouTube and VHS, not on DVD, largely forgotten)