unrelenting violence with a surprise gotta-cha sort've ending (even if you guessed, what it was its still rewarding).
these uber-violent movies leave me a little wanting. they seem determined to test ones limits for painful violence being performed on someone...and they succeed in that. when it takes up most of the movie, it makes me long for more story and more dialog. still for what it is, high tension does it well and has some surprises along the way.
7/10