After binge-watching endless hours of romantic Korean dramas, it’s time to watch something more serious and fast-paced that will give you thrills and intensity.
So, if you’re in the mood for pure suspense or complex crime dramas, here are 10 Mind-blowing Mystery-Thriller Korean Dramas To Binge-Watch.
1. Flower Of Evil
Original Release: July 29, 2020
Number of episodes: 16
Original Network: tvN
Main Cast: Lee Joon-gi, Moon Chae-won, Jang Hee-jin
Where To Watch: Netflix, Viu, Viki
Flower Of Evil revolves around Baek Hee-sung (Lee Joon-gi), a seemingly perfect and hard-working man who hides a darker secret and is married to a police detective named Cha Ji-won (Moon Chae-won). Their lives turned upside down, when Hee-sung’s tragic past and other unexplained murders begin to resurface in the media, and the couple is ultimately forced to face a harsh and cruel situation they never expected to encounter.
2. Search
Original Release: October 17, 2020
Number of episodes: 10
Original Network: OCN
Main Cast: Jang Dong-yoon, Krystal Jung, Moon Jeong-hee
Where To Watch: iQIYI

Search tells the story of a search operation of elite soldiers to find out the real reason behind the mysterious incident in the Korean demilitarized zone. The drama revolves around Sergeant Yong Dong-jin (Jang Dong-yoon), a military dog handler who is just one month-away from his military discharge. But when a mysterious incident takes place in the DMZ, he is selected to be part of the special search party that suck him into a long and difficult mission.
3. Memorist
Original Release: March 11, 2020
Number of episodes: 16
Original Network: tvN
Main Cast: Yoo Seung-ho, Lee Se-young and Jo Sung-ha
Where To Watch: Netflix
The crime drama centers on Dong Baek (Yoo Seung-ho), a passionate detective who solves crime using his supernatural power to read people’s memories. When a string of serial murders happen, he ends up working with Han Sun-mi (Lee Se-young), a talented criminal profiler to stop the killer and prevent further deaths. If you love solving crimes and nerve-wracking cases, this mystery-thriller is highly recommended.4. Tunnel
Original Release: March 25, 2017
Number of episodes: 16
Original Network: OCN
Main Cast: Choi Jin-hyuk, Yoon Hyun-min, Lee Yoo-young
Where To Watch: Netflix
The mystery-thriller revolves around Park Gwang-ho (Choi Jin-hyuk), an enthusiastic detective in 1986 whose life takes a turn when he leads a serial homicide case that leaps him 30 years into the future after passing through a mysterious tunnel while chasing the suspect. There, he meets an elite detective named Kim Seon-jae (Yoon Hyun-min) and work together to solve the series of murder that happened between 1986 to 2016 and to catch the murderer.5. Kairos
Original Release: October 26, 2020
Number of episodes: 16
Original Network: MBC TV
Main Cast: Shin Sung-rok, Lee Se-young, Ahn Bo-hyun
Where To Watch: Viu
Kairos is a mystery thriller about Kim Seo-jin (Shin Sung-rok), a man who falls into despair, after his daughter is kidnapped, and Han Ae-ri (Lee Se-young), a woman whose mother has disappeared. They connect through a phone call despite living one month apart to help solve each other’s cases.6. The Good Detective
Original Release: July 6, 2020
Number of episodes: 16
Original Network: JTBC
Main Cast: Son Hyun-joo, Jang Seung-jo, Lee Elijah
Where To Watch: Netflix

The Good Detective revolves around Kang Do-Chang (Son Hyun-Joo), a veteran detective and loyal detective who has been working in the Police force for 18 years. When a long buried murder case is re-opened after new evidence is revealed, he teams up with Oh Ji-Hyeok (Jang Seung-Jo), a young elite detective to reinvestigate and discovers a wider ring of corruption trying to cover it up.
7. Signal
Original Release: January 22, 2016
Number of episodes: 16
Original Network: tvN
Main Cast: Lee Je-hoon, Kim Hye-soo and Cho Jin-woong.
Where To Watch: Netflix

Signal was inspired by real events that took place in South Korea from 1986 to 1991. It revolves around Park Hae Young (Lee Je-hoon), a cold-case profiler in 2015 and Cha Soo-Hyun (Kim Hye-soo), a detective in 1989, who work together to solve a series of related murders spanning three decades, using a special walkie-talkie to communicate with each other.
8. Watcher
Original Release: July 6, 2019
Number of episodes: 16
Original Network: OCN
Main Cast: Han Suk-kyu, Seo Kang-joon and Kim Hyun-joo
Where To Watch: Viu
The crime-thriller follows Kim Young Goon (Seo Kang Joon), a motivated police officer who is still being haunt by a brutal event that happened 15 years ago, Do Chi Gwang (Han Suk Kyu), a veteran detective who headed an investigation unit to chase corrupt government officials, and Han Tae Joo (Kim Hyun Joo), a lawyer and former prosecutor. The three work together to uncover the truth behind the brutal murder case committed 15 years and discover a shocking dark secret along their way.9. 365: Repeat The Year
Original Release: March 23, 2020
Number of episodes: 16
Original Network: MBC TV
Main Cast: Lee Joon-hyuk, Nam Ji-hyun, Kim Ji-soo
Where To Watch: Viu
The drama follows a group of 10 people who gets an opportunity to reset their lives, and travel back one year in the past to create a better future for themselves. But mysterious events start to happen that begins an intense survival game, where they fight against their destiny.10. Voice
Original Release: January 14, 2017
Number of episodes: 16
Original Network: OCN
Main Cast: Jang Hyuk, Lee Ha-na, Lee Jin-wook and Song Seung-heon
Where To Watch: Netflix
The procedural thriller follows the lives of 112 emergency call center employees as they fight against crimes using the sounds that they hear. The story focuses on a successful detective who becomes guilt-ridden after his wife was murdered while he was at work, and a tough policewoman who is gifted with perfect psycho-acoustics skills and went for voice profiling. The two team up as the Golden Time team and solve cases together, chasing after the serial killer who took their loved ones.


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