Thriller shows are one of the most-watched genre around the world. They are packed with action and twists you never think of. South Korean thrillers are on the next level.
Korean dramas are addicting & are popular now. Many have started watching dramas as most of them are now available on Netflix & Viki. They are quite good to watch with family too.
All types of dramas are available to watch online ranging from rom-com to action thrillers. They have an interesting plot, good cinematography & perfect emotions. The plot twists are also great.
Best Thriller Korean Dramas
While Korean dramas are popular for its romance genre, there are some good thriller Korean dramas to watch to keep you on the edge of your seat.

The two things that keep you watching thriller shows are their gripping storyline & flawless acting with some action packed scenes that keep you engaged.
If you want to watch some of the best thrillers that Korean provides, here are 24 best thriller Korean dramas for you to watch & enjoy.
1. Signal
Park Hae Young witnesses the kidnapping of a girl 15 years ago. Currently, Hae Yeong is now a police officer and criminal profiler. One day, he finds a walkie-talkie that connects him with Detective Lee Jae Han who is in the past. Together, they solve a series of murders.

2. Flower Of Evil
Baek Hee Sung is a craftsman living with his wife, Cha Ji Won & daughter. But he hides some dark secrets that even his wife is unaware of. His wife is a homicide detective who investigates a case of a psychopath who is quite close to her.

3. Extracurricular
Hangul: 인간수업
Year: 2020
This drama is about three high school students named Ji Soo, who is a model student, his friend and classmate Gyu Ri, and the school bully Min Hee, who start committing crimes to make money and pay for college. As a result, they face unpredictable dangers.

4. Strangers From Hell
Hangul: 타인은 지옥이다
Year: 2019
Jong Woo goes to Seoul from the country when his friend Jae Ho gives him a job offer. He finds a cheap hotel while looking for a place to live. He makes the decision to stay there for six months. But strange things start to happen with him.

5. Vagabond
Hangul: 배가본드
Year: 2019
The stuntman Cha Dal Gun’s nephew dies in a plane crash. He learns that the plane crash was caused by a huge government scandal, and he and a NIS agent named Go Hae Ri set out to find out the truth and bring those responsible to justice.

6. Kingdom
Hangul: 킹덤
Year: 2019
During the Joseon period, the spirit of a recently dead king comes back, and a mysterious illness starts to spread across the country. To find out what is going on and save his people, the crown prince must deal with a new kind of enemy.

7. My Name
Hangul: 마이 네임
Year: 2021
Yoon Ji Woo, who is part of a drug ring, joins the police to find out what happened to her father. She does this by becoming a mole for the drug group. She works in the police department’s unit that looks into drug crimes.

8. Tunnel
In 1986, Park Kwang Ho works as a detective. While working he passes through a tunnel that acts as a time portal, which transports him to present-day Seoul. He meets a new partner Kim Sun Jae. They try to find out the serial killer to return.

Cast –
- Choi Jin Hyuk as Park Kwang Ho
- Yoon Hyun Min as Kim Seon Jae
- Lee Yoo Young as Shin Jae Yi
- Jo Hee Bong as Jeon Seong Shik
No. Of Episodes – 16
Watch On – Netflix
9. Save Me
Sang Mi’s family move to Mujigun. There she meets four young men. Later, she and her family are approached by the Spiritual Father of Goosunwon who offers to help them. However, they get caught into the pseudo-religious cult and the four young men try to save her.

Cast –
- Seo Yea Ji as Im Sang Mi
- Ok Taec Yeon as Han Sang Hwan
- Woo Do Hwan as Seok Dong Chul
- Jo Sung Ha as Baek Jung Ki
No. Of Episodes – 16
Watch On – Netflix
10. Voice
Detective Moo Jin Hyuk after his wife’s death, works with professional voice profiler Kwon Joo, whose father is killed, to solve a different crime, chasing for the serial killer who is responsible for the deaths of their family members.

Cast –
- Jang Hyuk as Moo Jin Hyeok
- Lee Ha Na as Kang Kwon Joo
- Baek Sung Hyun as Shim Dae Shik
- Son Eun Seo as Park Eun Soo
No. Of Episodes – 16
Watch On – Netflix, Viki, Prime Video
11. Stranger
Hangul: 비밀의 숲
Year: 2017
Hwang Shi Mok, a prosecutor finds him in a murder case. He meets Police Lieutenant Yeo Jin at a murder crime scene. They work together to wipe out corruption at the prosecutor’s office and solve a serial murder case.

12. Through The Darkness
The drama will tell the story of South Korea’s first criminal profiler as he struggles to look inside and read the hearts of serial killers during a time when the word “profiling” did not exist. It is based on the 2018 book of the same title.

13. Train
Seo Do Won is a detective who tries to save Seo Kyung. There are two different worlds in this drama. Do Won travels to the other world through a mysterious train that shows up in the abandoned station to track the serial killer with the help of the other Seo Kyung.

Cast –
- Yoon Shi Yoon as Seo Do Won
- Kyung Soo Jin as Han Seo Kyung
- Shin So Yool as Lee Jung Min
- Lee Hang Na as Oh Mi Sook
No. Of Episodes – 12
Watch On – Viki
14. Defendant
Hangul: 피고인
Year: 2017
Park Jung Woo is a lawyer who has lost his memory and finds out that he is already on death row. He has no choice but to race against time to find out what caused his situation and prove that he is not guilty.

15. Kairos
The drama centers around two persons. A man whose daughter is kidnapped and a woman whose mother is missing. They both contact each other through a phone call and help each other but they are a month apart in time and can only speak for 1 minute.

Cast –
- Shin Sung Rok as Kim Seo Jin
- Lee Se Young as Han Ae Ri
- Ahn Bo Hyun as Seo Do Gyun
- Nam Gyu Ri as Kang Hyun Chae
No. Of Episodes – 16
Watch On – Viki
16. The Guest
Yoon Hwa Pyung is a psychic born to a shaman family. Choi Yoon is a catholic priest known for exorcisms & Kang Kil Young is a detective. They meet each other and try to fight against crimes caused by mysterious powers.

Cast –
- Kim Dong Wook as Yoon Hwa Pyung
- Kim Jae Wook as Choi Yoon/Matthew
- Jung Eun Chae as Kang Gil Young
- Lee Won Jong as Yook Gwang
No. Of Episodes – 16
Watch On – Netflix
17. 365: Repeat The Year
Hangul: 365: 운명을 거스르는 1년
Year: 2020
The story of a group of people who are given the opportunity to relive a year of their lives in order to prevent a tragic accident from happening. Along the way, they uncover hidden truths about themselves and those around them, and must confront their past mistakes.

Short Review: The drama explores themes of destiny, atonement, and the value of second chances. The acting is excellent, and the story is well-written. The drama also got praise for its original premise and for how it keeps the audience guessing right up to the very end.
18. Beyond Evil
The story of two fearless lawmen, Lee Dong Shik and Han Joo Won, who break the law to catch a serial killer. In the course of uncovering the culprit’s identity, they question the innocence of everyone involved in the case including themselves.

Cast –
- Shin Ha Kyun as Lee Dong Shik
- Yeo Jin Goo as Han Joo Won
- Choi Dae Hoon as Park Jung Je
- Choi Sung Eun as Yoo Jae Yi
No. Of Episodes – 16
Watch On – Netflix, Viki, Prime Video
19. Mouse
Ba Reum is a police officer whose life changes when he encounters a psychopathic killer. This drives him and his partner to unveil the truth behind psychopathic behaviours. A drama that asks the question, “What if we could identify psychopaths in advance?”

Cast –
- Lee Seung Gi as Jung Ba Reum
- Lee Hee Joon as Ko Moo Chi
- Park Joo Hyun as Oh Bong Yi
- Kyung Soo Jin as Choi Hong Joo
No. Of Episodes – 20
Watch On – Viki
20. Tell Me What You Saw
Hyun Jae used to be a top criminal profiler. He gets vanished after his fiance’s death. Meanwhile, Soo Young is a police officer in the countryside. She is selected as a rookie detective who will partner with Hyun Jae informally. Together they work to solve cases.

Cast –
- Jang Hyuk as Oh Hyun Jae
- Choi Soo Young as Cha Soo Young
- Jin Seo Yun as Hwang Hwa Young
- Jang Hyun Sung as Choi Hyung Pil
No. Of Episodes – 16
Watch On – Viki
21. The Veil
Hangul: 검은 태양
Year: 2021
The best agent at the National Intelligence Service, Ji Hyuk, gets caught up in a situation that puts NIS in a very tough spot. As he tries to find the employee who betrayed him and caused him to lose his job, he runs into a much bigger enemy behind the organization.

22. Taxi Driver
Hangul: 모범택시
Year: 2021
Do Gi is a taxi driver for a company that offers a service called “revenge call” to its customers. It is a secret group that takes care of people whom the law failed to protect. Do Gi and his coworkers will take revenge for customers who ask them to.

23. Happiness
Hangul: 해피니스
Year: 2021
In the near future, a new apartment building has been built. The people who live there come from different places, but a new disease spreads quickly. It shows the psychological battle and the way that people from different classes treat each other.

24. Island
Hangul: 아일랜드
Year: 2022
The story of a chaebol heiress who is banished to Jeju Island after she is possessed by a spirit. She meets an immortal human and a priest who performs exorcisms. Together, they must fight against the evil that is trying to destroy the world.

Wrapping Up
There are many more to discover & watch. So, pick any one or all of them & get ready to watch. Besides dramas, there are many more Korean Thriller Movies to watch that keeps you entertaining more & more.
Follow us on Facebook, Instagram, X (Twitter), Pinterest & subscribe YouTube channel for more exciting content on Korean dramas & movies.
Keep watching !!
FAQs
1. Which are the best Thriller Kdramas?
There are many thriller Korean dramas such as Flower Of Evil, Signal, Tell Me What You Saw, Save Me, and more that you can watch.
2. Where can I watch thriller dramas?
You can watch most of the dramas on streaming platforms and apps such as Netflix, Viki, Viu, Kocowa, Prime Video, etc.
3. What are best thriller dramas of 2023?
A lot of thriller dramas are released in the year 2023 that includes Brain works, Duty after school, Payback, etc.
4. Does thriller drama also contain suspense & mystery?
All the thriller shows are suspenseful that will keep you on the edge of your seat. They are also mysterious and will keep you guessing till the end.