Forensic anthropologist Tempe Brennan examines the bodies of three babies while Detective Ryan investigates their mother in a case with ties to the high-stakes world of diamond mining.

"A body is found in a barrel of asphalt next to Lowes Motor Speedway near Charlotte just as 200,000 fans are pouring into town for race week. The next day, a NASCAR crew member shares with Tempe a devastating story. Twelve years earlier his sister, Cyndi Gamble, then a high school senior who wanted to be a professional racecar driver, disappeared along with her boyfriend, Cale Lovette. Lovette kept company with a group of right wing extremists known...

Winter has come to North Carolina and, with it, a drop in crime. Freed from a heavy work schedule, Tempe Brennan is content to dote on her daughter Katy, finally returned to civilian life from the army. But when mother and daughter meet at Tempe's place one night, they find a box on the back porch. Inside: a very fresh human eyeball. GPS coordinates etched into the eyeball lead to a Benedictine monastery where an equally macabre discovery awaits....