Psychologist Susan Pulaski, who has a near-empathic gift for understanding the thought processes of criminals, is a consultant for the Las Vegas police force. When the city is galvanized by a brutal murder case stemming from the death of a young woman who has been buried alive, Police Chief Robert O'Bannon calls on Susan's services. Susan, in turn, relies on the help of O'Bannon's 26-year-old son, Darcy, a high-functioning autistic savant with a prodigious eidetic memory and an instinctive gift for solving puzzles. Darcy's gifts prove invaluable as they follow the trail of a devious madman ... who has a special agenda for killing and killing and killing again.