Dana Pierson has invited Mia Antonelli, the grand-niece of her friend Father Giovanni Borelli, to stay with her while the girl attends a private Catholic high school in Boston. As Dana, a reporter for the Globe, settles the Italian teen into her new life, she is caught up in the excitement and horror of a potential story as one Catholic church, then another, is set on fire. Joining forces with the State Fire Marshal, Ryan Kelly, Dana sets out to determine who is responsible, unaware that Mia and her new friend, Meagan, are attempting to solve another mystery-what happened to Dana's three-year-old son who disappeared thirteen years ago.

As Dana becomes more involved in the investigation, as well as with Ryan Kelly, she realizes that he has enlisted her help because of a story she covered years ago involving a scandal in the Archdiocese of Boston. As details from the past are reexamined, these two tragedies-the church fires and the disappearance of Dana's son-collide and come together in a most unexpected and shocking way.