Vigilante is based on a webtoon with the same name. Prior to watching this, I've read the webtoon to get better understanding but stopped halfway after I completed the series.

To date, this is, perhaps, one of the best miniseries in k-drama land. It blends action, thriller, psychological, and crime genre perfectly. It uses 'fighting for justice in my own way even though it's wrong' trope heavily. We see the ML (Kim Ji-yong) had a traumatic past as his mother was murdered and the murderer got a short-sentence in prison. After ML grew up, he came across the murderer again and beat him brutally. At last, he made up his mind to become a vigilante (a serial killer, to be precise) - to protect the world and the innocent people from injustice by dealing with the criminals with his own hands since the law couldn't be trusted anymore.

Nam Joo-hyuk portrays Kim Jiyong seamlessly and expresses various emotions versatilely - he's as good as a pyscho, I really love it. Yoo Ji-tae also does well as Cho Heon - a detective who was sent to arrest the vigilante. I'm really impressed by Kim So-jin - the one who acts as Choi Mi-ryeo - she's maybe some kind of lunatic, but she still got her own sense of justice and was willing to help the vigilante as she could as possible. Lastly, Lee Joon-hyuk as Cho Kang-ok is a great fan and a big support of vigilante as well - like his funny banter with Ji-yong...

I've no more words to describe it anymore - but yes, this dark tale deserves more attention from the public and the rating could've gone higher. After Vigilante, another miniseries, which is 'A Killer Paradox', tries to duplicate it, but falls short compared to this one. If you love pyscho plot with a blend of action thriller genre, you can give this a shot. Warning: Lots of bloody and violent scenes, don't try it at home.