Plot synopsis: The original series tells the story of a small-town Welsh lawyer, wife and mother, Faith, whose maternity leave is cut short when her husband and business partner, Evan, suddenly goes missing. As Faith sets about searching for the truth behind Evan's disappearance, she discovers that her seemingly idyllic home town hides many dark secrets that pose a danger to her and her beloved family and make her question how well she knows the man who is her husband.