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Secret Forest (Season 1)

Title: 비밀의 숲 / Secret Forest
Also Known as: Stranger
Genre: Thriller, Mystery, Legal
Broadcast network: tvN
Episodes: 16
Broadcast period: 2017-June-10 to 2017-July-30
Air time: Saturday & Sunday 21:00
Related Series: Secret Forest


This drama is a pre-produced drama. It’s about a chase thriller where a prosecutor who has lost his emotions explores the secrets inside the prosecution office and chases the real criminals along with a righteous police officer.

Though he is rational, a childhood brain surgery leaves prosecutor Hwang Shi Mok (Cho Seung Woo) to lack emotion. Cold and lonely, he’s one of the only prosecutors not involved in corruption. When he meets Police Lieutenant Han Yeo Jin (Bae Doo Na) at a murder crime scene, they join forces to eradicate corruption at the prosecutor’s office and solve a serial murder case.


Main Cast

Cho Seung Woo as Hwang Shi Mok
Gil Jung Woo as Shi Mok (10 years old)
– Song Eui Joon (송의준) as Shi Mok (15 years old)
Bae Doo Na as Han Yeo Jin

Seoul Western District Public Prosecutors’ Office

Yoo Jae Myung as Lee Chang Joon
Lee Joon Hyuk as Seo Dong Jae
Shin Hye Sun as Young Eun Soo
Lee Kyu Hyung as Yoon Se Won

Yongsan Police Station

Choi Byung Mo as Kim Woo Kyoon
Park Jin Woo as Kim Soo Chan
Choi Jae Woong as Jang Gun


Lee Kyung Young as Lee Yoon Bum
Yoon Se Ah as Lee Yun Jae
Uhm Hyo Sup as Park Moo Sung
Lee Ho Jae as Young Il Jae
Yoon Kyung Ho as Kang Jin Sup
Jun Bae Soo as detective squad chief
Park Yoo Na as Kwon Min Ah / Kim Ga Young
Song Ji Ho as Park Soon Chang
Park Sung Geun as Detective Head
Kim So Ra as Choi Young
Seo Dong Won as Kim Jung Bon
Lee Jae Yong as Kim Nam Jin
Sun Woo Jae Duk as An Seung Ho
Son Dong Hwa as doctor
Kim Ji Hoon as section chief
Ye Soo Jung as Park Moo Sung’s mother
Jang Sung Bum as Park Kyung Wan
Bae Hyo Won (배효원) as Assistant Yang
Kim Min Sang (김민상)
Choi Jin Ho (최진호)
Kang Min Tae
Park Soon Chun as Shi Mok’s mother
Yoon Ji On as Cafe part-timer
Jun Yeo Jin as Kang Jin Sub’s wife
Lee Tae Hyung as Kim Ho Sup


Lee Jae Won as Kim Tae Kyun (Ep 10)

Production Credits

Production Company: Signal Entertainment and IOK Media
Director: Ahn Gil Ho
ScriptWriter: Lee Soo Youn


2018 54th Baeksang Arts Awards: Best Actor – Cho Seung Woo (Secret Forest)
2018 54th Baeksang Arts Awards: Best Screenplay
2018 54th Baeksang Arts Awards: Daesang
2017 1st The Seoul Awards: Grand Prize – Secret Forest

Episode Ratings

Date Episode AGB TNmS
2017-06-10 1 3.041 3.2
2017-06-11 2 4.148 4.0
2017-06-17 3 4.088 3.6
2017-06-18 4 4.170 4.5
2017-06-24 5 4.064 3.7
2017-06-25 6 4.082 3.9
2017-07-01 7 4.389 4.0
2017-07-02 8 4.154 4.6
2017-07-08 9 4.319 4.3
2017-07-09 10 4.834 4.6
2017-07-15 11 4.733 5.0
2017-07-16 12 5.511 5.0
2017-07-22 13 4.451 4.4
2017-07-23 14 5.447 6.0
2017-07-29 15 4.993 5.1
2017-07-30 16 6.568 7.1

Sources: TNmS Media Korea & AGB Nielsen Korea (Nationwide)

*** Different between TNmS Media Korea & AGB Nielson – Here

*** Note: This drama is aired on Pay-TV channel which has fewer viewers than Free-TV channels. So, please don’t be surprised with the low rating. ***


Related Photo

(Other Photo from Official Site)

Official Site

Official Trailer
Trailer I
Trailer II
Trailer III
Trailer IV
Trailer V
Trailer VI

Watch Online in Viki.com

Watch Online in Dramafever.com


  1. 1 : OK OK OK Says:

    I like crime and thriller drama – will watch 😛
    Like both leads too.

  2. 2 : tigerb Says:

    there was a neurosurgeon who had brain impairment to not react emotionally. now a prosecutor. let’s see how this goes.

  3. 3 : driving directions Says:

    The content of the film seems good. I like to watch the kind of detective. I will try to watch.

  4. 4 : Guest Says:

    At last, Cho Seung Woo is back with a new drama. Looking forward to it except that wish the lead actress is someone else.

  5. 5 : Loulou Says:


    It has to be amazing if she decided to be part of the drama !!!
    Omg i love her as sun in netflix’s show Sense8 (check it out if you don’T know her). She’s one of the best korean actresses. It’s like a jackpot for the producer and of course tvN 😀 !!! CANT WAIIIT !!!

  6. 6 : Mimi Says:

    Really looking forward to this! 😀

  7. 7 : Stranger Says:

    Bae doo na….luv her..looking fwd to this series…

  8. 8 : Elle Says:

    Guys you wrote “LWEGAL” in genre, correct it LOL!

  9. 9 : thessa Says:

    Bae Doo Na the actress portraying SUN in Sense8 she’s good looking forward you here in korean drama……

  10. 10 : sanjinyeon Says:

    I will definitely watch this due to Cho Seung Woo, it’s been a long time I haven’t seen him in a kdrama after Kings Doctor and God’s Gift 14 days.

  11. 11 : MaxT Says:

    I watched it RAW and it was good. It’s worth watching.

  12. 12 : CoolBeans Says:

    Intriguing first two episodes. I just love the leads. Sense8 was cancelled by Netflix. Getting my Bae Doo Na fix here. WHERE is this subbed? Please, please tell me

  13. 13 : annmasae Says:

    watching on dramafever with english subs. terrific crime show. can’t wait until next week. I am a big Bae Doo Na fan too. Saw her in Country Princess (2003) and Someday (2006) so many years ago. Glad she is back. She hasn’t aged at all. The main actor plays his role really well too. Favorite current show along with Lookout (also on dramafever.)

  14. 14 : Mardonna5187 Says:

    Honestly it is good but already moving a bit slow. If he is supposed to be super smart and emotional defunct Shi mom is lacking? The questions are missing in the drama. When, why, where, who, what; you can’t so if writers don’t pick this up the rating chart will never have numbers

  15. 15 : MaxT Says:

    The ratings are pretty good.

    Rating for episode 1:
    Nationwide 3.041% (1st)
    Seoul 3.627% (1st)
    Peak 4.7%

    Rating for episode 2:
    Nationwide 4.148% (1st)
    Seoul 5.498% (1st)
    Peak 6.1%
    TNmS 4.0%

  16. 16 : Florensiana Says:

    This is awsome Good stories and good cast

  17. 17 : Oriza Says:

    good drama, good cast, yet the story is moving a bit slow.

  18. 18 : Jukbang Says:


  19. 19 : marie Says:

    This is a very good drama. The lead stars are good! I will definitely also watch the other dramas of these 2 main leads, Cho Seung Woo & Bae Doo Na 🙂

  20. 20 : me_nina Says:

    until ep.8 hwang shi mok just smile two times, hhaha~
    as we know he lack emotion, but this is a good signal, right? hwang shi mok smile in front of han yeo jin two times..

  21. 21 : Suhan Says:

    will regret if not watching… Untill 6 episode 오아아아앟 … 재미있다 … ㅅ_ㅅ

  22. 22 : MaxT Says:

    Episode 9 was pretty exciting….

  23. 23 : MaxT Says:

    This drama should 20+ episodes. 16 episodes are too short.

  24. 24 : annmasae Says:

    continuing to enjoy drama. the acting is great and the script keeps you on the edge of your seat. please scritpwriter continue the good writing until the end. i think it’s better not to extend the episodes because then the drama will drag on. looking forward to a great ending.

  25. 25 : OK OK OK Says:


  26. 26 : windsun33 Says:

    This is by far the best Drama running and probably of the past 2-3 years.

  27. 27 : Jam Says:

    The show is a great reason why I love weekend. And I have to wait 6 more days. Ep 12 is a cliff hanger

  28. 28 : OK OK OK Says:

    I am so worried for Lee Joon Hyuk as Seo Dong Jae becoz he is spying on the present president and his father in law…..
    afraid he might get killed becoz of his dangerous assignment…..

    This is a nice and exciting drama to me… 🙂

  29. 29 : Gong Says:

    Best drama on right now. Writing is so good I looked up writer and wanted to see other work by writer. I’m so excited I can’t wait for new episodes. This is Kdrama series which will travel well to other countries. Characters very contemporary and very well drawn out. Love all the details.

  30. 30 : areum Says:

    still watching this and so far this drama is good.. high rating i=on pay tv channel^^

  31. 31 : yaya Says:

    I’ve been watching this drama. Excellent. The story plots excellent.

  32. 32 : Marie Says:

    this drama is really very good! I love this drama! Excellent story plot! So far this is the best drama I’m currently watching… waiting for episode 14!

  33. 33 : MaxT Says:

    This was the only drama with an unpredictable ending per episode. It’s a great drama with puzzling plot. Up until ep14, the real killer was finally revealed.

  34. 34 : OK OK OK Says:

    the male prosecutor with the 07 tattoo on his right shoulder, really looks like actor Jo In Sung, just a shorter version in height. ha ha 😛

    So who is the main bad man in here. The President’s wife????

  35. 35 : OK OK OK Says:

    I am going to watch Horse Doctor because Cho Seung Woo is the lead actor. ha ha 🙂

  36. 36 : Stranger Says:

    @ OK OK OK

    hahaha..me too ..I had the horse drama series for ages ..not even bother to watch it..but I definitely need to spent some time this weekend..

    I always big fan of BDN since country princess..shes sucha terrific actress..

    Recommend this drama to everyone whose like to watch crime genre..great plot (tq writer-nim)..talented actors ( i tell u what..everyone in this series!!)..so sad its going to end this week..BDN & CSW im waiting your next project (^_^)V

  37. 37 : annmasae Says:

    Really Exciting Drama. The lead actor is terrific.
    @ok ok @stranger I also plan to watch horse doctor.
    I already watched Cho Seung Woo in God’s Gift 14 Days. He played a totally different character. It shows his versatility in doing all types of roles.
    Hope the ratings end really high since the writing and acting is the best!!!

    It is currently my favorite drama. Only one more week!!! Fighting to the writer and cast!!!

  38. 38 : sanjinyeon Says:

    this one is another thrilling brain draining kdrama, if your not fascinated to a suspense,detective stuff you will lost half way. I’m so glad that every actors and actresses who played their characters here are veterans and really good in their acting. The emotionless Si Mok is really awesome because it’s really hard to act without any emotions.

  39. 39 : Fullheart5 Says:

    Well done. Well done. Worth every bit of watching time.

  40. 40 : Kdramafan Says:

    Well written, well acted, and very satisfying drama!

  41. 41 : sanjinyeon Says:

    what a revealing ending!,how’s corruption is connected from the death of Park Moo Seung is really interesting. Somewhere in my heart I felt sadness for Lee Chang Jun because he chose himself as a bait for everything to be revealed. I believed that this kind of situation really happen in our modern world. this kind of kdrama is worth watching for.

  42. 42 : annmasae Says:

    great drama. great ending. maybe a Season 2??? I hope the scriptwriter does other dramas. why can’t all great dramas have a good ending like this. congratulations to the actors, staff and most of all the scrip writer.

  43. 43 : OK OK OK Says:

    Yes, love to have season 2 😛

  44. 44 : mondang Says:

    season 2 pleaseee

  45. 45 : stranger Says:

    season 2 with more romance..

  46. 46 : Winnie Says:

    Great drama and great actor. Yes please season 2

  47. 47 : shiva Says:

    Great Drama, Best drama so far in 2017. very intense

  48. 48 : Victoria Says:

    I enjoyed this series, wondering if there will be more episodes,… left me guessing the end of the last episode….

  49. 49 : Allika Says:

    This is the first Korean drama I’ve ever watched and I loved it! It’s on Netflix here in Germany and I knew Bae Doo Na from Sense8 and really liked her there, so when I saw her face on Netflix I just thought to give it a try and started to watch it with subtitles, and then I couldn’t stop watching 🙂 I really liked the story and the acting and it was quite different to what I’m used to, so it was extra interesting.

  50. 50 : Florensiana Says:

    Already miss them
    Hope will be season 2
    With more romance

  51. 51 : silverswan Says:

    Not an excellent drama as I do not favor this one. You dont look forward to it like some dramas did. The actors and actresses were good no doubt, but the story isn’t that great either

  52. 52 : bloxorz online Says:

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  53. 53 : vex 3 Says:

    Thanks for your post! Through your pen I found the problem up interesting! I believe there are many other people who are interested in them just like me! How long does it take to complete this article? I have read through other blogs, but they are cumbersome and confusing.

  54. 54 : OK OK OK Says:

    Hi Admin

    Could you please add Lee Kyu Hyung ssi name in this Secret Forest page because he is one of the actor in this drama.


    Lee Kyu Hyung images in drama Secret Forest

    Thank you

  55. 55 : usps tracking Says:

    I have read through other blogs, but they are cumbersome and confusing more than your post. I hope you continue to have such quality articles to share with everyone! I believe a lot of people will be surprised to read this article!

  56. 56 : Christina Nee Says:

    A very good drama and most watch. Both lead actor and actress is very good.

  57. 57 : Ling Says:

    Lee joon hyuk is excellent in this drama. As is yoo jae myung

  58. 58 : Ling Says:

    Bae doo na a fine actress

  59. 59 : Ling Says:

    A disappointing last episode.
    Lee chang joon’s end, while there were hints here and there, wasn’t totally believeable for me.

    Bae doo na created a wonderful character. She such a good actress!

    Cho seung woo. Created another memorable character. (Remember his super charismatic turn in God’s gift – 14 days wow!). One who doesn’t feel emotions like the regular Joe. Mix that with a strong sense of justice righteousness fairness and u get someone who feels so much more than the average joe.

  60. 60 : Juliyana Chou Says:

    Nice Combi Bae Do Na & Jo Seung Woo aka YeoJinShiMok. Nice story too. Its totally different kinds of story I liked. I wish there have season 2.

  61. 61 : Nadi Says:

    I am so excited to hear that season 2 will be produce with the same cast. At least oppa jo seung woo already confirmed to be part of it. He’s so cool and definitely fits to the role as sharp and cold prosecutor. Can’t wait to see him back in new drama. Miss him so much.

  62. 62 : Ling Says:

    Will be difficult to top this drama

  63. 63 : Mysterygirl Says:

    highly recommended drama I cried a lot when I saw Young Eun-Soo lying on the floor dead

  64. 64 : tigerb Says:

    have watched and enjoyed season 2, so decided to watch this series. finished first 2 episodes and learned why hwang seems stoic all the time: he lost the ability to have and show emotions, thus he is very analytical with a very good memory, so good for his job. guess i’ll enjoy this to the finish.

  65. 65 : tigerb Says:

    i enjoyed this series. simpler in plot than series 2, but just as entertaining.r

  66. 66 : laura Says:

    my fav drama … and this is the first time i seen cho seung woo and bae do na.. wow ..amazing match partner.. i love character from Ms. Han and Mr. Hwang ..and the way they are acting ..very perfect … natural and looks nice.. the strory really make me take think twice and i cant guessing, and first i dont like ms Han but she can make me likes her also… she’s greatttt .. i really love ..fav movie .. and cho seung woo .. i fall in love wth you .. .

  67. 67 : dino run Says:

    good movies watch very book! Actors are very expressive! Looking forward to part 2!

  68. 68 : t rex games Says:

    I like the character of the heroine! She is very decisive and intelligent

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