A frantic search begins when Claudia's friend Kelly learns that her three-year-old niece is missing. Kelly's estranged half-sister Erin and her husband live quiet lives as members of a fanatical religious cult in an isolated Southern California location. But now, Erin's husband and their child have disappeared, leaving behind a cryptic note with a terrifying message. The clock is already ticking when handwriting expert Claudia becomes one of the few outsiders to be invited into the Temple of Brighter Light compound. There, she must hurry to uncover the truth before the prophecy of a secret ancient parchment can be fulfilled and a child's life written off for good.