Caged Fury opens with a scantily clad inmate escaping from her cell through a tunnel whose entrance is concealed by a poster. This is not a reference to The Shawshank Redemption, though after watching this women-in-prison flick I can say, like Andy Dufresne, that I crawled through a river of shit and came out clean on the other side. The girl’s soon recaptured, although how, where, and when remains as big a…