Watch Slumber Party Massacre II (1987) HD Full Movie Free on SolarMovie. Watch Slumber Party Massacre II (1987) online free. Courtney Bates, the younger sister of Valerie, and her friends go to a condo for a weekend getaway, ...Courtney Bates, the younger sister of Valerie, and her friends go to a 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.