Dan w. -- that's what I was thinking -- does he have the cadaver of the young man. It would be impossible for this young man to leave with him from the hospital and no one ever wonder where he is or how he's doing. Which leads one to think the whole cave thing is in his head. Also important that the young man is in HIS bed - like the other man; does lead one to think that catching his wife has perverted him in some way.