Autumn Reiniger expects something special for her twenty-first birthday. Daddy�s already bought her the sports car, the apartment, and admission to the private college where she parties away her weekends. Now she wants excitement, and she�s going to get it. Her father signs up Autumn and five friends for an �ultimate urban reality� game: a simulated drug deal, manhunt, and jailbreak. It�s a high-priced version of cops and robbers, played with fake guns and fast cars on the streets of San Francisco. Edge Adventures alerts the SFPD ahead of time that a �crime simulation� is underway, so the authorities can ignore the squealing tires and desperate cries for help. Which is convenient for the gang of real kidnappers zeroing in on their target and a mammoth payday. Because Daddy doesn�t know that someone has spotted his hedge fund�s bulging profits, and the path to those riches runs right through Daddy�s Little Girl. Working on a case nearby is forensic psychiatrist Jo Beckett and her partner, Gabe Quintana. When the pair encounters a suspicious group of men carting six sullen college kids to the woods for a supposed wilderness adventure, alarm bells ring. Jo takes a closer look and winds up with an invite to Autumn Reiniger�s twenty-first birthday party � a party she may never leave.