Tales From the Crypt episode

There's an episode from The Tales From the Crypt TV show that is similar to this movie. The Plot: Two doctors who are friends but argue over the consciousness of a persons dead body. I believe they make a bet, and the one friend, in order to prove it, poisons the other doctor. The other doctor then, still conscious in his body, is brought to a morgue and treated like any other dead person.

Which was creepy in itself because then the friend talks to him, knowing he can hear. The friend takes him in front of a group of students and is about to perform an autopsy when he reveals, he only drugged him and he would come out of the drugs in a second. The twist is he doesn't come out of it. He had a heart attack and died while he paralyzed by the drugs.

Now, I know that episode was made way after this movie, but the episode was based on the old EC Comics which predates this movie(it was either in TFTC, or Vault of horror, or The haunt of fear). And those stories usually were new spins on old tales.

So the question i have, does anyone know the original story these ideas were first taken from(the idea being a man dead, or drugged to think he's dead, but still conscious)? I'm guessing its some story that at some time was popular but nowadays isn't that well know.

Also, there was another TFTC episode a lot like this. A criminal has his face reconstructed to look like Humphrey Bogart, and is killed by his wife and friend. He then, dead and conscious, watches as his friend and wife try to get rid of his body. Criminal Bogart's mistress catches on and tries to stop them from burying his body.

Its a great episode, directed by Bob Zemekis. Its notable for being shot entirely POV-style just like Bogart's movie Dark Passage and the film Lady in the Lake.

I hope some one reads all this and knows something.