All right I\'m going to confess here, I read the other comments first. This show completely threw me for a loop and I couldn\'t decide what had actually transpired. My first instinct was that Martin was remembering something that had happened to himself, he had been in the cave and lost it at the end and created the illusion of his wife cheating on him to distance himself. Then I wondered, is it his wife and her lover in the cave? This was an outstanding show (I had decided to give it a 5 before I got on my computer to comment) but I\'m still not sure exactly what the writer intended. Which is one reason its so good, it poses more questions than it answers. I agree about Norman Rose, his voice is almost as deep and creepy as that of Arnold Moss, who does an outstanding single-actor narration in The Graveyard. This show offered many twists, each one caught me off guard, like when Martin leaves them in the cave and goes back to his life (you can feel the Doctor\'s consternation as he struggles to grasp this). Outstanding show.<br>