The best scene (spoilers)
Just saw this - can't believe I missed this back in the day on network tv too!
While yes it is indeed basically a cheap rip-off of CARRIE it has one decent WTF scare and that is the death (the only one too in the film that is of the occult; saying quite a lot!) of Mrs. Bellamy - comes outta nowhere so fast that it is damn near impossible to see What-is-attempting to escape her throat (looked like a rat) but it is indeed a Holy Christ WTF?! The bloating bladder head was all the rage back then - it is effective but again requires several pause and repeats (I'm sure the censors cut that as fast as possible to ensure their family-friendly audience then not to have the deep night terrors later)
"I'll have a steak sandwich...and a steak sandwich"