Showgirl Ruby Duvall is roughed up by her future sister-in-law, arrogant society snob Joyce Conroy, and offered $5000 not to marry Philip and soil the family name. It seems an open-and-shut when Ruby is found dead in her dressing room after a visit from Joyce. It's all too obvious for Mike after learning of another backstage visitor that night: Ruby's violent ex-con ex-boyfriend who refused to let Ruby go.