Slumber Party Massacre II (1987)

IMDB
Genre : Comedy, Horror, Musical
TRAILER
Director : Deborah Brock
Stars : Crystal Bernard, Jennifer Rhodes, Kimberly McArthur, Patrick Lowe
Plot : Courtney Bates, the younger sister of Valerie, and her friends go to their condo for a weekend getaway, but Courtney can't get rid of the haunting feeling that a supernatural rockabilly driller killer is coming to murder them all.