Landi, a composer, spends much of her time with the womanizing Roland, a concert singer. His suspicions aroused, Walker--her father-in-law--hires unscrupulous detective Bellamy to find evidence of a presumed affair. Bellamy conceals a dictating machine microphone in the singer's room and,
two floors below, listens to the singer's conversations. When the sex-obsessed singer is murdered, Bellamy fabricates evidence pointing to Landi as the culprit. His motive? She is Bellamy's ex-wife; he seeks revenge. Landi's current husband, Hamilton, shields his wife from the charge by assuming
the blame for the crime. Although Hamilton's attorney believes that the unwritten law ...