As you're already aware of, Undercover is a remake of the popular UK series of the same name, the makers have also done immense changes in many plots giving extra essence to the major characters. This is rather a political thriller that feels like a tragedy throughout the entire thing and makes you feel sad. Absuse of power, authoritative ruling, corruption, dirty politics, etc. without the consideration of how it affects a common man's life and people's emotions are parts of this drama.

Undercover is set up in a premise where a familyman tries to save his lovale family from getting ruined by his own tragic past that he has been hiding all his life out of insecurity that the revelation can break his dear ones apart. To save your time here I suggest you read the plot in the synopsis so that I can jump to my review, haha.

Have you watched the Lee Joon Gi starrer tragic thriller drama Flower of Evil: FoE (2020) which even got multiple nominations at the 57th Baeksang? Well then, Undercover is established on somewhat similar (I would say 30%) premise. Only difference is that the given situations in both the dramas are different but also lead to a tragic result where there seems no door to get out of.

Undercover is emotionally stirring and the brewing conflict between the leads even when they're unware of eacg other's flaws, is what you call the main attraction of the drama. The emotions and beliefs of the leads will leave you worried about the fate to befall on them and their happy family. The greatest message it gives is, even in a regular and perfectly normal relationshp, situation of discovering inadvertent lies, is something hard to overcome and reconcile.

Talking about acting and cast, the cast felt so good though I personally think it could have been better; the children of the lead couple and some people at the NIS as well as in the police force and the Blue House could be better actors. But the lead duo Ji Jin Hee and Kim Hyun Joo were so powerful throughout the series and their chemistry was remarkable though it's the second time playing a couple but it was different given that the characters were intense. Ji Jin Hee has always proved his versatility by playing a number of challenging characters but in my opinion this role is the most difficult. I felt the same when he played the same character in "Move to Heaven" even though he was there in a guest role.

The core concept of this drama is the same as Flower of Evil, sometimes it felt a bit slow but manageable. Back to back tragedies are a bit triggering which might make you angry; at a point everything goes wrong back to back things happening lose the way back to their places that makes one suffocating.

There was a huge character development for both the lead characters and the way it was presented by intertwining and connecting the present time with their individual as well as united pasts. That is one job that intrigued me tbh. The story has been well written and the direction and screenplay has been done nice but let me tell you that you shouldn't expect a lot from it for we have seen similar plots before and all the political tragedies are not new to us either. It's just a story with different elements and a different way of execution that makes it interesting and kept me going.

Overally, it's not a bad show but worth a one time watch. Please give it a watch before you judge. Scoring a gravitating pitch, UNDERCOVER vaunted a solid narrative right off the bat. Coupled with a good cast, it invites you to brace yourselves for the parade of confrontations, betrayals, and conspiracies spicing up its initial displayed story.