If you made it this far, I'm sure I don't have to explain it too much. Mindless, poorly acted and thought out and of course; cheaply made. But it has it's charm! It's corny to the maximum and you should watch it without thinking too much and enjoy it for what it is. Mindless fun! Naturally, that doesn't mean it's a masterpiece. It's basically like the other two, just retold with a new cast and a few tweaks. You can notice the pattern easily. With all that in mind, I give it 6.5/10 because of the cheese. Enjoy! :D ;)

Directed by Sally Mattison and written by Catherine Cyran - all of the Slumber Party Massacre movies have been directed by women - this movie is probably the worst of the three films and a remake.

It does have a character named The Beach Weirdo that somehow has a power drill that he carries around and uses to do what killers in the slumber party movies do, which is drill women.

After filming was completed, the set was used for another Roger Corman-produced sequel that was also unrelated to the movie that before: Sorority House Massacre II. Speaking of Corman, this movie needed his special touch, because even though the actresses in the film were hired because they would get nude, several refused and Mattison agreed to let them keep their clothes on.

The sinister foreign buyers demanded to see some flesh and Maria Ford was the one to get her clothes ripped off and assaulted, no matter what Mattison wanted to have happened. Man, how has Corman never been part of the Me Too takedown? Hopefully, he's treated his talent better than what I've read.

Director Sally Mattison and screenwriter Catherine Cyran eschew the usual playful humor that distinguished the first two immensely enjoyable films in this series in favor of a much darker, more harsh, and unpleasant approach to relating the standard story of an all-girls slumber party that's savagely crashed by a vicious killer brandishing an enormous power drill. The violence this time is extremely gory and sadistic, with the killer's distaff victims getting offed in assorted grisly and appalling ways (an electrocution by vibrator rates as the definite alarming highlight). The handsome and outwardly charming Brittain Frye makes for an unusual and interesting choice as the murderous Ken, who's the angry and unstable victim of sexual abuse by his police officer uncle. The gals are spunky and attractive, with stand-out contributions from Keely Christian as the cute and appealing Jackie Cassidy, the adorable Hope Marie Carlton as the cheery Janine, and Maria Ford as the foxy Maria, who sports a massive hairdo and bares her breasts prior to suffering a brutal and disturbing near rape by Ken and then meeting an especially gruesome untimely end. Moreover, the tone is quite grim and mean-spirited, with the deceptively breezy and lighthearted opening giving way to a much more cruel, twisted, and no-holds-barred ferocious sensibility that's anything but silly or inoffensive. It's this latter take-no-prisoners gritty and unflinching edge that in turn makes this slice'n'dice outing a movie that's deserving of greater respect and appraisal for boldly breaking away from the generally inane and innocuous mindset that was the prevalent attitude of the series prior to this last, most serious, and truly upsetting installment.