Overall a bad movie, as it is a B movie or worse. But it does have its upsides. It will explain to people the meaning of sadism as a concept. It also shows how plots in jail can go awry and cause more problems for the people executing the plot. Not great acting, and seems weirdly dubbed English. Plenty of skinploitation going on, and some of the girls are good looking. Overall not a horrible plot to the movie, but needed better execution and writing to shine. For a movie of its day, it probably wasn't all that bad however. Do not buy if you're looking for a good movie. Do watch for a peek into movie making of yesteryear or a good showing of sadism.