The Jackson women, Indiana and Amanda, have always had each other. Yet while their bond is strong, mother and daughter are as different as night and day. While her mom looks for the good in people, Amanda is fascinated by the dark side of human nature--as is her father, the SFPD's deputy chief of homicide. Brilliant and introverted, Amanda is a natural-born sleuth addicted to Ripper, the online mystery game she plays with her beloved grandfather and friends around the world. When a string of strange murders occurs across the city, Amanda plunges into her own investigation. But the case becomes all too personal when Indiana suddenly vanishes. Now, with her mother's life on the line, the young detective must solve the most complex mystery she's ever faced before it's too late.