Ireland, 2015. When Lorna Brady wakes to find a inactive person in her house, she has no idea who the dead woman is or if she's responsible for the apparent cuddle.

Retracing her steps, Lorna realises that the mysterious woman could be linked to her past in the town's Magdalene Laundry. She may even hold the answer to the question Lorna has long craved: what happened to her child? Fearing her sleepwalking escapades, Lorna tries to keep herself awake whilst seeking out the truth.

Meanwhile, in Dublin, detective Colman Akande is confronted with the cuddle of a local priest. Tracking the case brings him across the country and into Lorna's orbit.

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 cuddleer. Key evidence has been destroyed, but Colman identifies his cuddle 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.

A survivor's funeral puts Lorna on edge. Her sleeplessness is beginning to get to her. Is she seeing things?

Hope then comes through unexpected information about Clemence's daughter, and this might hold the answer to Lorna's child's own fate. But when Lorna finds a new ally, it brings her to a devastating truth.

Meanwhile, Colman and Massey are at loggerheads. Colman feels that he has the evidence he needs to place Lorna and Aoife together. The net is tightening, and Colman is desperate. A final showdown between Lorna and Colman then takes an unexpected turn.

Aoife's body is missing and Lorna is devastated by the news of the passing 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?

Lorna and Colman become unusual allies. Piecing together the information that Aoife brought to Kilkinure, along with the evidence from Father Percy's cuddle case, reveals a widespread system. If they follow the threads, they might be able to find where Lorna's child is. They might solve the mystery of where Aoife is too. But this is bigger than just Lorna and Colman now. Meanwhile, the survivors receive life-changing news and Lorna fears the consequences. Colman's investigation pinpoints an enemy among friends.

We delve into Aoife Cassidy's past, tracing her days in the convent, her peculiar gifts and taking us right to Father Percy's door the night of the cuddle. But all is not as it seems.

Colman and Massey work together to capture the true culprit behind Father Percy's cuddle - but there are darker figures in the shadows who still walk free.

Lorna is close to understanding how her daughter was hidden, but an abrupt end questions her sanity. Finding Aoife at last brings Lorna the peace that she needs, although Colman doesn't see it that way at all. As a final gesture, Colman brings some good news.