Reviewer msroz is really on target. The film's competently made, performed, and better than expected given the sleazy title. Trouble is, as msroz points out, the story's a cliché about a humane reformer (Thor) bringing kindness to a brutal reform school for boys. He's opposed by the resident warden (Hoyt) who only grudgingly cooperates. Not exactly cutting-edge material for its time.
Unfortunately, the screenplay includes two big stretches. First is the expected Hollywood ending that's an abrupt reversal of what's gone before. Second-- in my book at least-- is making the school co-educational. I just can't see how mixing teen-age girls with hormonally-driven boys is going to make anyone's job easier or more effective. Nonetheless, it does set up an audience-pleasing battle of the bra's, especially Dorothy Provine, who's soon to take a few steps up the Hollywood ladder and I can see why.
Shouldn't overlook several of Hollywood's best baddies of the period. We've got Scott Marlowe who snarled with the best of the teenage punks, as he does here. Then there's John Hoyt, his cruel face and manner perfect for a tough warden. And shouldn't neglect Richard Reeves as the hulking guard, ever an intimidating screen presence.
All in all, it's an excellent cast for a B-movie independent. So, if you can overlook some of the stretches, the film's got genuine compensations.