In 1957 deranged and dangerous Catholic priest Father Jonas (excellently played with frightening intensity by James Carver) kills two fornicating teenagers. Thirty-three years later Father Jonas escapes from the cellar of the church he's been imprisoned in and returns to the monastery from his youth. Said monastery has been converted into a summer home where a pair of teenage couples go to celebrate prom night. Director Clay Borris and screenwriter Richard Beattie craft an extremely dark and twisted slice'n'dice body count fright feature that benefits substantially from a grimly serious tone, a creepy mood, a steady pace, several gory and nasty murder set pieces, a smidgen of steamy soft-core sex, a considerable amount of tension, and a brutal and harrowing last third. Better still, there's no silly disruptive humor to diminish the severity of the in-your-face harsh and unflinching horror; Father Jonas in particular registers strongly as one extremely scary and vicious dude. In addition, the brooding religious angle gives the picture an extra sick and subversive edge. Nicole de Boer makes for an appealing heroine as the sweet and virginal Meagan; she receives sound support from Alden Kane as Meagan's nice guy boyfriend Mark, Joy Tanner as shameless slut Laura, Alle Ghadbran as the equally brash Jeff, Brock Simpson as eager young priest Father Colin, and Fab Filippo as Mark's bratty peeping tom younger brother Jonathan. Rick Wincenty's polished, agile cinematography keeps the camera constantly moving and boasts a handful of fluid tracking shots. Paul Zaza's spooky'n'shuddery score likewise hits the skin-crawling spot. A superior slasher horror outing.

to me,this movie is the best of the four.it's the most suspenseful and creepy.the story has a mostly religious bent to it,and of course there is the Latin chanting which comes with these movies.for me,i find that very eerie,to say the least.the music is quite eerie,as well.the suspense in this movie is quite high.to me,it became almost unbearable at times.the idea of a fanatical nut thinking it is their job to cleanse people of sin(by killing them)isn't really new or original today.it wasn't really original back in 1991 when this movie was released.but,for me,it worked in this case..while this is no masterpiece,i did like it.one thing i didn't like was the potty mouth of one of the female characters.i just didn't think it was necessary.for me,Prom Night IV:Deliver us From Evil is a 6/10

Let me start off by saying that I hate the Mary Lou sequels. Not only are they boring, the are just, in general, pathetic. That's why I cant understand why people say that Urban Legends: Final Cut is the worst horror film/sequel ever made. They obviously haven't seen Hello Mary Lou: Prom Night II and Prom Night III: The Last Kiss. Prom Night IV: Deliver us from Evil is not one of the greatest horror sequels around. But it is a masterpiece when compared to the earlier sequels. The first Prom Night was an excellent film. God I love it. But what the hell is up with the sequels? Slasher flick fans should have some fun with this, I sure did! It's mildly entertaining and very, very suspenseful and freaky. Father Jonas scares the crap out of me. I love this film for what it's worth.

This is a slasher that plays it by the rules, so if I'm spoiling anything for you, it's because you've never seen a slasher movie before.Prom Night IV gives us the gift of slashing in a film that is lit with decent effectiveness, not shot notably poorly, with sub-par to decent acting and some moderately suspenseful scenes. The prom thing is more or less done in the intro, where we get to see a couple slashed in a prom in 1957. Our mad killer here is a Catholic priest gone horribly wrong--he kills with a cross where the long end has a blade.Our victims, two teenaged couples, are headed down to a retreat that used to be an old monastery for a weekend of debauchery. Meanwhile, a young priest newly charged with watching over the insane priest (who's been kept underground by the Church) is developed for a bit, but manages to slip in his duties. (Prom Night IV is very good at giving "bonus slashes" before it gets around to killing the teenagers.)The highlight of Prom Night IV is Nicole de Boer, who you might remember from The Cube or Star Trek: Deep Space Nine (she was Ezri Dax). Her acting, which is pretty good, manages to elevate the rest of the movie (since she is the film's heroine). The rest of the cast is pretty small-time, though, and doesn't live up to Nicole.It does have the requisite T&A shots (and a really poor sex scene), to be certain, and it manages to fit 8 deaths into a film that only focuses on those 4 teens. All are pretty freaky and well done, too. Once the suspense starts, it's pretty good at not letting up, despite following the rules strongly. The extended scenes before the slasher starts on the teens build everything up quite well.This is a slasher movie, and you will enjoy it only if you're in the mood for one. However, it does what it does well, and as such is worth picking up if you are.