The Slumber Party Massacre

Rita Mae Brown, the lesbian-feminist novelist behind Rubyfruit Jungle, wrote this as a flat parody of the slasher boom, and the producers filmed the script mostly straight, leaving a body-count picture quietly at war with itself. Amy Holden Jones directs, one of the very few women to helm a film in the cycle, and the killer's weapon is a comically enormous power drill the film is fully aware of. The seams between satire and slasher never quite close, and that friction is what makes it worth more than the dozen interchangeable titles it shipped alongside. Smarter than its title and its poster suggested.