The otherworldly landscapes of northwest Wales provide a spectacular backdrop for this breakout hit from the producers of the critically acclaimed Hinterland. DCI Cadi John (Sian Reese-Williams) returns home to care for her ailing father. However, when the body of a young woman is found in a local river, it becomes obvious that sinister forces are lurking nearby. "A crime thriller you'll want to discover." — Digital Spy. 8 episodes, 8 hrs, 3 DVDs, SDH. Mature audiences.