User reviews

A must watch drama for the thriller lovers. You will be hooked from the beginning to the end. After a long time a good suspenseful drama arrived.. #Who watches over the Watcher???

I am not usually a thriller fan...but this ought my attention and kept it. I am used to Korean series with characters aged 30+ experience first kiss with eyes wide open in shock...(really guys?)..For a change, this is a really well written, well acted by all, suspenseful story. I became addicted after the first episode. Watch it.

Decent korean tv as usual puts the UK to shame Tv and movies from Korea are superb

I really love this series.It is so awesome & attractive for me.This serie isn't lazy for me.I cannot wait to watch next episodes.

Excellent murder mystery thriller! Absolutely fabulous cast! Loved it!

Okay, i'm even not sure if there're so many words that can literally describe how much i love this drama, can't count how many times i rewatched it anymore, i even downloaded all the eps on my pc to check on them almost every time i open my pc.. this is a masterpiece, the different role that seo kang joon plays in it which is really showing his acting skills very well more the the romantic roles he used to play, han suk yu -my today and forever best actor- which i actually knew form this drama and made me watch the two seasons of dr. romantic, he played this psycho role very very well, the way he stares on others in this drama was incredible!! i really loved everything about this show, the hidden romance between some couples, the bromance between chi kwang and kang joon, every simple hint or meaning in this drama is really such a holy thing! WATCHER is my always and forever best drama i've ever seen.

This is a show full of crazy people. They are all on the psychosis spectrum for sure. Which makes for an incredible thriller. They all make it very hard to root for any of them and depict the duality of human behavior and psychology very well. It's intense but it's fabulous story telling.

An internal corruption team headed by Do Chi-kwang (Han Suk-kyu) are looking into murders possibly carried out by a secret organisation within the police. His team is made up of a person who's mother was murdered by a person with links to the organisation and a lawyer who was also tortured by them. It is a well acted drama although the line between good and bad guys become blurred as they all seek what they deem as justice. Even though the plot is clever the execution let's it down with a mish mash of flashbacks which confuse and some ridiculous events in the action which seem contrived. Worth a watch but could have been much better with a different screenplay.

Seo Kang Joon, dashing as ever when it comes to acting. After watching this series, I just felt like there was not enough justice that's much done to the unfolding of events. I was wishing for more but I guess the satisfaction of getting what I want was not just possible. Story-wise, this sends a strong message to everyone who is position.

This show was an enjoyable watch, but nothing particularly stood out to me. The mystery of who killed Young-Goon's mother was the most interesting plot line, so once that was solved I felt like the show kind of dragged from that point on. The acting was very good, and I liked the soundtrack, but the fight scenes were definitely my favorite parts - they seemed extremely realistic. Definitely a good watch.

No clue why no one informed me about the existence of this series before?? I don't know why this series isn't so much more popular, it has such amazing plot, such amazing casting, such amazing acting and the execution of everything is SO GOOD. I absolutely adored the pacing, it was so perfect, nothing was too slow and nothing was too quick. It was easy to understand and every characters plot was written so so wellllll..all the actors did such a great job. I honestly watch all of these sort of crime dramas thinking they'd be like the last one but this one specifically stuck out to me, it was so good. I would definitely recommend and would easily rewatch this. It left me wanting a season 2.

Just in the first episode, you already know who is the real villain. There was attempt to hide the villain and confuse the viewers but I guess it was not even well executed. The second female lead character is boring even there is no romance theme. The acting of the other cast was great though. The ending was open ended that it appears it might have a season 2.