I watched season 1-3 and already like it.. and now, season 4 is coming... Excited, you can feel the tense since eps 1, want to watch more, I feel bad for Kang Center. Huhuhu.. I wonder why the villains were called themselves as Circus Man. Why did they choose clowns? This movie really got me so much goosebumps. Poor all of ICs who haven’t watched thriller dramas before.. HAHA... Recommend this movie for all Thriller Movie Lover. This is really good ??I think it’s okay if you haven’t watched season 1 till season 3, you still can understand and enjoy the drama, because this drama is about Derek Jo and Kang Kwon Joo.