Lora King, a school teacher, and her brother Bill, a junior investigator with the district attorney's office. Lora's comfortable, suburban life is jarringly disrupted when Bill falls in love with a mysterious young woman named Alice Steele, a Hollywood wardrobe assistant with a murky past. Made sisters by marriage but not by choice, the bond between Lora and Alice is marred by envy and mistrust. Spurred on by inconsistencies in Alice's personal history and possibly jealous of Alice's hold on her brother, Lora finds herself lured into the dark alleys and mean streets of seamy Los Angeles. Assuming the role of amateur detective, she uncovers a shadowy world of drugs, prostitution, and ultimately, murder.