Aoife's body is missing and Lorna is devastated by the news of the death of her child. The search for her daughter's grave becomes ever more fraught. Enlisting Michael to help, the two begin to understand the enormity of what Aoife Cassidy had come to share with the town. Lorna takes matters into her own hands and heads toward the convent, but will she be brave enough to face past demons?Back in Dublin, Colman is reprimanded for his renegade actions. It feels to him that his nightmares are becoming real, and he begins to delve into his own past. A shocking revelation builds a new connection in the case. Does Colman hold the answer that Lorna is looking for?