Act of Vengeance (1974)
A group of women take a martial arts class to punish a sadistic serial rapist who wears a hockey mask
The Beguiled (1971)
While recuperating in a Confederate girls boarding school, a Union soldier cons his way into each of the lonely womens hearts, causing them to turn on each other, and eventually, on him
The Gay Deceivers (1969)
Danny and Elliot avoid military service by pretending to be gay, but they have to act the part when the recruiting officer doesnt buy it