When I read the novel Pretty Maids all in a Row in the '60s, I never dreamed it could be made into a movie, much less a movie with a major director (Roger Vadim), well-known stars (Rock Hudson [with porn 'stache!], Angie Dickinson, Roddy McDowall, Telly Savalas [absolutely playing Kojak], Keenan Wynn). With a screenplay by producer Gene Roddenberry. One thing I'm convinced of is that the movie could never be made now.
Rock Hudson is a high-school guidance counselor who's sleeping with students (lots and lots of underage nudity and upskirt shots, not to mention sex scenes). John David Carson is a student whom Hudson sets up with his teacher, Angie Dickinson (yes, nudity and sex). Meanwhile someone's murdering cheerleaders and pinning notes to their panties. The whole thing is so unPC that it's hard to believe even when you're watching it. The '70s were a different world, for sure. Oh, and it's a comedy. With a song by the Osmonds (!). Looking for something completely different? This is it.