For years, I have always watched Nam Joo Hyuk's shows because I find the plot interesting and Vigilante is no exception. Vigilante revolves around Kim Ji Yong living a dual life — studying as a police officer by the day and punishing remorseless criminals at night.

The story starts with a young Ji Yong who gets shocked by the court's decision to punish his mother's murderer with a short jail sentence. Years pass and the criminal continues attacking innocent people which prompted Ji Yong to take his revenge and ultimately kill him. Ji Yong realizes his mother's case is not an isolated case and that the justice system is being too lenient on criminals. He starts hunting for repeat offenders who easily get away with their crimes and taking the law into his own hands.

Nothing is groundbreaking here but Nam Joo Hyuk ruthlessly killing criminals and embodying Robin Hood was indeed a pleasant watch. His tall and brooding physique yet having a quiet demeanor makes him the perfect mysterious hero.

However, my main issue for this show is how they keep on adding new characters each episode, all of which are underdeveloped.

Cho Heon, the team leader of the regional investigation unit, is an intriguing character. It only took him a short amount of time to catch Ji Yong yet he lets him off the hook. He believes he can convince Ji Yong to be a competent police officer just like him.

My empathy for Cho Heon's motives goes down the drain when both him and Ji Yong didn't have any character growth. Ji Yong's intentions were also unclear to me since he forms alliances with anyone he likes without a rational thought. I also find Joo Hyuk's acting a bit lackluster since he only growls whenever he is confronting Cho Heon or the criminals.

The violent fights and torture were also unnecessary and exaggerated. It feels like the show tries to be a gritty and bloody noir wannabe.

Overall, I enjoyed the first half of the show but not as much as the second half. Everyone is aimlessly trying to bring down the criminals without a concrete plan. The characters also seem to be one-dimensional. I don't find myself watching the second season, if ever there will be one. Vigilante is an entertaining thriller that lets Joo Hyuk show he looks good as a young action hero but the underdeveloped characters and confusing narrative makes this show hard to recommend.