Lorna still hasn't slept, and she has no intention of doing so until she finds out what Aoife Cassidy knew.
The town's laundry survivors are campaigning for justice, and Lorna discovers that Aoife spoke to another survivor. Past betrayals emerge to the surface and end in tragedy.
Colman and local guard Massey join forces to track down Father Percy's murderer. Key evidence has been destroyed, but Colman identifies his murder suspect as Aoife Cassidy, whilst Lorna's strange behaviour brings her to his attention. And there's something about this town that is really starting to get under Colman's skin.