Marcus Vaughter

A little girl's brother kills the whole family but her (she escapes by hiding in the basement). He is committed, and she grows up with a new family, eventually going to college, where she joins a sorority. Due to a memory block, she doesn't remember that the sorority house was her childhood house. Her brother senses her presence in the house and escapes so he can finish the job he was unable to complete. (imdb)

Melody, Marci, and Mickey are three geeky college girls who can't get a date. One night, they invite some geeky college guys over and have a seance that results in the girls becoming possessed and turning into sex starved vamps. Will the geek hero guys be able to stop the horrible (?) possession? (imdb)

Aliens chase a teenager who stole one of their ray guns.