The Gist: A high school teen throws a Halloween party at a creepy house which is crashed by an ancient relative of hers reincarnated as a vampire.
Clarification: This was a made for TV Halloween special from 1985 which aired on the ABC network. Since it aired on a Friday night it was not a very serious horror and was very light and campy (Friday nights being ABC's most successful night for comedies for decades).
The film basically follows a pretty cut and dry premise. A bunch of trouble making "kids" (I use quotes because I'm pretty sure everyone in this film is well over 20 playing teenagers. In fact they don't look like teenagers at all and most of the main actors were over 30 including Reading Rainbows Lavare Burton.) steal some stuff from a museum, mess around in a graveyard accidentally raising the dead (without them knowing) and then throw a party.
The now undead great times a few grandmother of the girl throwing the party shows up and turns her great times a few granddaughter into a vampire then teaches her to turn other people who then repeat this process till everyone at the party is a vampire. After that it's up to the one party straggler and his new girlfriend to break the curse and save the town.
Selling Point: Great Soundtrack (I to this day think of this film the second I hear "How Soon is Now" by the Smiths) also a ton of female neck biting.
Female Vampire Factor: Well that's eventually every female in the film with the exception of one girl who's identity is a bit of a major swerve so I won't ruin it. Your main ones are the resurrected ancestor of the character Melissa, A witch named Lucinda played by Jonelle Allen.