She thought she was finding her birth mother. Now she's searching for a killer. Dr. Margo Dunlop is at a crossroads. Her adoptive mom just passed away, and Margo misses her so much she can't begin to empty the house-or, it seems, get her brother on the phone. Not to mention she's newly single, secretly pregnant, and worried about her best friend's dangerous relationship. In an effort to cheer herself up she goes in search of her birth mother. Instead she finds Nikki, her mother's sister. Aunt Nikki isn't what Margo expects, and she brings upsetting news: Margo's mother is dead. Worse, she was murdered years ago, and her killer is still at large-and sending Nikki threatening letters. Margo is torn. Should she stay out of this mess, or try to find justice? But then Margo receives a letter, too. Someone out there has been waiting and watching, and in Margo sees the spitting image of her mother.