When the show begins, a young couple is inexplicably moving from their wonderful home--and that is a weak point in the plot. The place is so perfect and they have NICE and helpful ghosts who have saved their lives--so why would they ever move?! Regardless, the folks who buy the place are awful--a porn star and her sociopathic jerk of s husband (Robert Picardo--sporting a toupee). The ghosts (Evelyn Keyes and Eddie Bracken) are aghast at how horrible their new tenants are and they decide that instead of being nice ghosts, they'll try to scare away these jerks. The problem, however, is that the ghosts really are awfully nice and don't have it in themselves to be THAT scary. Plus, the awful family are just too stupid to be scared!
This show is a lot like it was written for children--with cartoonish characters. While Bracken and Keyes were just fine in their roles as a sweet, elderly set of ghosts, the awful family was just too ridiculous and seemed like they were written by an 8 year-old! Had it been a bit more subtle, then it would have worked much, much better.
By the way, if all this seems familiar, it's pretty much the plot from "Beetlejuice". Enjoyable but as I said, it could have been better.