Deep within Germany's mysterious Black Forest, a region of fairy tales and dark legends, a gruesome discovery is made. A perfectly preserved body is pulled from a peat bog, reopening a decades-old cold case. Local detective Maris Bächle is reluctantly paired with the reserved Konrad Böwe from the state police to investigate. As they dig into the town's past, a new series of murders begins, each one eerily echoing an ancient local saga about a "bog girl." The mismatched pair must navigate small-town secrets and decipher chilling folklore to stop a killer who is bringing a dark legend to life before they can strike again. This gripping two-part miniseries has ended, but sign up for a reminder just in case it returns.