When San Francisco private detective Sharon McCone is contacted to re-investigate a three-year-old murder by the acquitted suspect herself, she is intrigued. Caro Warrick contends to have suffered discrimination by family and friends, and even denied employment because no one will believe her innocence, despite being found not guilty of the brutal murder of her best friend. Other detectives have turned Caro down, but Sharon has a gut feeling that she might be able to help the woman, notwithstanding her doubts about her