Since the previous comments have pretty much nailed it on this one, all I have to add is that if you've only seen this in the seriously edited- for-television version that ran as part of the BLACK BELT THEATER/DRIVE-IN MOVIE package back in the '80's, seek out the version that can still be found for rental in some video shops. The uncut ending is a real mind-blower!!! However, this film is so good that even edited it turned enough of us on back in the days to keep us tuning in every Saturday afternoon for years.