This drama was very unsatisfying for me. It started out great but became more and more disappointing with each episode.
It is definitely not an entertaining drama or even an investigative or psychological drama. This drama tackles the difficult subject of school violence and the theory that violence begets violence. While the idea of the series is commendable, the execution is too heavy-handed. I felt like someone was non-stop hitting me over the head with a hammer saying that violence is bad. I think it would have made a bigger impression and had a bigger effect on me if I had been able to like one of the characters and started to notice how much the violence had left its mark on his personality and character. If someone actually, preferably a psychologist, had explained to the policeman and the viewers about the far-reaching effects of being subjected to violence, about trauma, about PTSD, etc., I would have liked to have seen the effect. Meanwhile, this drama may even encourage retaliation, as the last episode actually suggests. To me, The King of Pigs is a brutal tale of brutality with little room for real reflection.
I appreciated the music, which was quite original for a drama. Heavy rock is not something you often see in the credits. The acting? Ok, but for a k-drama it wasn't anything extraordinary. Rather standard.
Worth watching again? I'm not going to torture myself with violence, and there wasn't a nuance that left me uncomfortable, not a single scene that I'd want to see again