When an Orthodox Jew is found shot to death in Montreal, Temperance Brennan is called in to examine the body and figure out the puzzling damage to the corpse. Unexpectedly, a stranger slips her a photograph of a skeleton and assures her the picture is the key to the victim's death. Before she knows it, Tempe is involved in an international mystery as old as Jesus, a mystery that could rewrite 2000 years of religious history.