Anne Waverly lives with the curse of a tragic past - the horrific deaths of her husband and beloved daughter Abby in a mass suicide pact. Believing herself responsible for their deaths, Anne tries to atone by going undercover for the FBI and infiltrating potentially dangerous religious communities.
When FBI man Glen McCarthy comes to her with his latest case, Anne agrees to help him one last time, little realising how her life will be changed forever. Her ordeal begins in the American desert, and ends in a sprawling house in the English countryside. But does Anne have the power to halt the community's impending destruction, and to save two vulnerable children, one of whom could be Abby's double . . .?
