That ending....wow! The emotions it invokes!! (At least for me) Angry, betrayed, devastated, and used! :( It looks like everyone is either thinking of or has started their own revenge plan to get back at the government/police. I hope they have a second season, i want to see how it plays out!
http://www1.dramacool.to/drama-detail/master-devil-do-not-kiss-me