Sorry I don’t mean to offend anyone, we have our own taste when it comes to dramas but this just wasn’t my type. I felt like the story was dragged for too long that 12 or 16 episode would suffice instead of 20 episodes. The story is too long and very draggy, but overall if you enjoy up and down dramas, this would be great for you! :) The story line was indeed very realistic which i guess why a lot of people liked it, I liked the story too but it’s too draggy. Every episode makes you think who the Joker is but you just can’t guess it. I only enjoyed watching the last episode in this 20 episode drama :( Totally not worth watching again.