Joe Hufford (Glenn Ford) gets involved in a nightclub brawl, kills a man in self defence, and is sent to prison for manslaughter, to the dismay of district attorney George Knowland (Broderick Crawford) who realises Joe had an incompetent lawyer who should have gotten him off by proving self-defence. Later, Knowland becomes warden of the prison Joe is in, and makes him a Trusty and his chauffeur. Joe and the warden's daughter, Kay (Dorothy Malone), fall in love but Joe gets involved in a prison escape.