Loved the plot of this drama - it feels like you'd already know the ending like all other serial killer dramas but this ones got many twists in the middle. Honestly wanted to drop this drama when I was 2-3 episodes into it but it progressively got better and better towards the ending. I do really love the added humour to keep the drama light-hearted still! The cast were really good as well. I felt that the main lead really suited the role of looking like a very average salary man - superb acting!