Slumber Party Massacre II / Slumber Party Massacre III
Slumber Party Massacre II: (1987)
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.
Slumber Party Massacre III: (1990)
After a hard day of volleyball at the beach, a teen whose parents are away decides to have a slumber party with her girlfriends. Their boyfriends predictably show up to scare them, but a stranger from the beach is also seen lurking around the house. Soon the group begins experiencing an attrition problem.