A television set from who knows where allows zombies to enter into the real world. A brother and sister are readying the new family home while their parents are on a trip. The former discovers the set in the attic and mayhem ensues.
For some reason, this has garnered a cult following over the years. There are scenes that try for stupid humor but fall flat, while other scenes are unintentionally stupid. For example, the cowboy sets up a plan to have the brother hang helplessly as bait while he hides in a shed and picks off the zombies. So, what does he do as soon as he's in the shed? He sits down and goes to sleep. Brilliant move. Speaking of the brother, his acting is atrocious. Just watch the scene where he's talking to the guy on the TV and try not to laugh. None of the acting is good here, but wow. That whole scene is really bad though, not just the acting. Another poor scene is when a maid is killed. It's done in a ridiculous manner and seems to go on forever.
The effects are okay for the most part, though one sequence with a severed zombie hand is pretty bad. I did like the way the sister deals with the zombies in the climax. That made for some hearty amusement. The ending was good too, but as a whole, there's nothing I can see here to warrant such popularity. The charm of something like Night of the Comet just isn't there.