Francis Pettigrew, a retired London attorney, is vacationing with his wife in Exmoor. As a child, hiking through the wilds of Exmoor, he once came upon the dead body of a man. Not knowing what to do, he ran away and never told anyone about it. His memory of the incident slowly faded since there were no repercussions. This time, while hiking through the moor, he stumbles over a body, and the same nightmare repeats itself. Now, however, he is a grown man and knows that he must seek help. When he finds and brings back the members of a hunt club, the body is no longer there. Of course, he must investigate!