Black Alley Cats, The (1973)

aka: The Black Alleycats

Four young girls gang up and go on the warpath after being raped at knifepoint by a gang of drunken creeps. The gals learn karate and shooting before donning leather jackets to pursue revenge…but when they're not kicking butt, they have a lesbian school headmistress and steamy showers to deal with. With Sunshine Woods, Charlene Miles, Sandy Dempsey, Marsha Jordan and Uschi Digart.