This show is driving me nuts but I'm really enjoying it. After watching episode 8 I am really rooting for those two to work together to uncover what happened before.
I'm not so sure anymore if the uncle is a psychic. If he was, In Bum's childhood would have been different since he has his uncle to guide him. If I remember right, he only gave that necklace right after the botched exorcism that happened 20 years ago.
I'm really hating Ji Ah's secretary. Whatever the circumstance, hiding the truth from someone you care about will eventually hurt them more in the end. I can see that she cares for Ji Ah but because of her silence about Im Bum's identity and keeping the 1979 exorcism record, I'm guessing that she's trying hard to hide the truth because it might be Ji Ah who caused the exorcism to go wrong. Or even possibly she accidentally killed her mom or something. Her memories are not right on that night. Also, it was the secretary who called the police during the incident as stated by that detective. She might possibly be a witness thereby knowing half the truth about what happened but not the entirety of it or the cause of it. Another thing regarding the secretary, she might have dealt with the supernatural way way before since I'm guessing there's a backstory to her as well.
Regarding the uncle, he might or might not be the one to set the fire. If we base on Ji Ah's notes that an egg ghost is created when multiple people die at the same time, then he's really the arsonist and right after that, In Bum was possessed which prompted him to ask help from Ji Ah's mom.
There are still a lot of questions though and I can't wait for next week's episode.
Why did Ji Ah's mom helped during the exorcism even though she knew the stick won't work with the egg ghost? Is it possible they might be dealing with an older enemy (exorcism is a family business) and Ji Ah's mom recognized it and probably tried something new.
Why did the secretary keep the 1979 records? Does this mean she's been with Daebak Realty before Ji Ah? Could be working with her mom before. Of course the secretary could be a random stranger who asked for help the same night the mom and uncle died and witnessed something etc.
I'm so excited about how everything will unravel in the end. Who doesn't love a good suspense with a touch of the supernatural? :)