The Jolly Corner

What is this story about? I have recently finnished reading The Jolly Corner, and I found it completely confusing, and only have some very vauge notion as to the meaning and purpose of this story. But I also found it dreadfully difficult to get through the thing. If anyone could offer any insight on the story it would be apperciated.

Look at it as a man who is haunted by himself, or his former self.

Ahh ok, I was thinking of something along those lines. I was thinking perhaps it was about a man who was haunted by what he could have been if he took a different course in life.