Alone in his isolated, windswept chapel on the edge of Dartmoor, who could blame the young priest, Mark, for seeking affection from the local miller's daughter, Mary? But when Mary's body is found brutally stabbed, Mark is the obvious suspect, and the discovery that she was pregnant seems to confirm his guilt. Called in to investigate, Baldwin Furnshill and Bailiff Simon Puttock soon begin to have their doubts. Could it not have been one of Mary's many admirers who murdered her in a fit of jealousy? Or her father, the miller, who is acting in an increasingly disturbed manner? And what exactly is the local Baron trying to hide? Will they be able to find the murderer before he strikes again?