Joe Pritchard has spent 18 years in prison for the murder of Ela Roberts but has never disclosed where the body is. With Joe set to be released, Llanemlyn native, now journalist Cat Donato decides to return home to look for answers. Will she be warmly welcomed, or will her questions set the town on edge? Ela's mother, Sharon, is also desperate for answers, and she'll go to any lengths to get them.

Does Joe have the answers that Sharon seeks? Meanwhile, Cat's inquiries are making her unpopular in town.

Dai continues to support Sharon through everything, while tensions simmer between her and Gafyn. How will Sali react when she discovers Greta's secret? Cat and Caryl catch up again, and what Caryl has to say forces Cat to revisit the past. How will Joe react to Sharon's constant threats?

Sharon is terrified after Joe's visit, but has it scared her enough to stop her threatening behavior? DCI Parry visits Cat to warn her to stop fishing for information. But something he says to her makes her more determined than ever to uncover the truth. When things go from bad to worse for Sharon, an unexpected form of help makes an appearance.

Sharon and Joe struggle to come to terms with recent events, while Shelley and Cat try to help Joe remember the details of that fateful day.

With Cat's help, Joe returns to the woods and ventures on a journey, which both angers and haunts him. Is there anything to remind him of who was in the woods that day and what were the events surrounding Ela's death? Will Sharon get the answers and the peace that she so desperately craves, so she can finally switch off the light in the hall?