Nightmare Sisters (1988) is a Horror, Comedy film that follows three socially awkward sorority girls invite three fraternity pledges over for a night of fun, but when the group holds a séance, the girls find themselves possessed by a shaman who transforms them into lustful, uninhibited succubi. Nightmare Sisters is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 5.5 out of 10 from 115 votes. Fans of horror movies may also want to explore similar titles below.