Bauer was what I'd expect a prison inmate to be like - mean and streetwise, but with some morals and not thoroughly bad. Healy, while attractive, was not some 20-year-old ingenue and was convincing as a amoral gold-digger. She didn't have that many nude scenes but they were well-placed and highly effective. Ed Herrmann was good as a man faced with life/death for the first time. When he finally has to fight he does so in the clumsy, bumbling manner that you would expect, he isn't suddenly transformed into Bruce Lee.
Like the 50s and early 60s b-movies, but with enough sex and violence to make it interesting without being excessive. Good movie!