Sebastiancat, "The Cask of the A." isn't my favorite story because Montressor committed the perfect murder. It's because it is so suspenseful. We, the readers, know that Montressor is absolutely hates his friend with a blind passion, and we know he is certainly up to no good, as down..down...down Montressor takes him--like a lamb to the slaughter, completely unawares! We, ourselves, don't know just what a horrible revenge that Montressor exacts until the end. What makes it so horrifying, is Montressor never really tells us why he is so filled with hate for his friend. I take it that all these slights were in Montressor imagination.
Misty, I think these were "crocodile tears" that were the result of Montressor feeling sorry for himself that he has been driven to such lengths. I don't think Montressor ever feels remorse for what he did--or resonsible, either. It is never (in his mind) his fault. The writing down of his tale was, I think, vanity. He wanted to let the world know how clever he was. The deathbed confession, yes, maybe writing it all down before he died, to be found after his death. That, I think, fits in.
Trish, "The Tell-Tale Heart" is a very fine story.
I like it, too.

A lot of movies have been made using Poe's story tiles as their titles that have nothing, or little to do with the Poe stories, but
there was a really good old film based on Poe's "The Fall of the House of Usher". I think Vincent Price was the star, wasn't he, Trish? I seem to remember that it was faithful to much of the story. I know it was very scary.
There is also a version of "The Murders in The Rue Morgue" that starred George C. Scott as Dupin that is excellent.
I also want to welcome Trish (aka drac) to the book club. We always can use fresh blood.