Best Thriller Korean Dramas of All Time
Korean thrillers are dark, twisty and hard to put down: cold cases, corrupt power, revenge plots and mysteries where nobody is quite who they seem. This list brings together 25 of the best thriller Korean dramas on DramaHog.
How we picked: we started from what viewers rate highest on fan-rating charts and what critics and audiences around the world keep praising, then our editors put the final 25 in order by overall impact, rewatch value and how well each story holds up. Every entry links to its own page with the full story, cast and details, and the list will keep changing as new dramas earn a place.
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1
Squid Game
오징어 게임
Hundreds of players deep in debt accept a mysterious invitation to compete in children’s games for an enormous cash prize.
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2
Vincenzo
빈센조
During a visit to his motherland, a Korean-Italian mafia lawyer gives an unrivaled conglomerate a taste of its own medicine with a side of justice.
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3
Signal
시그널
A criminal profiler in 2015 finds an old walkie-talkie and, to his shock, hears the voice of a detective in 1989.
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4
SKY Castle
SKY 캐슬
In SKY Castle, an exclusive residential complex outside Seoul, doctors, professors and lawyers compete fiercely to get their children into the country’s top universities.
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5
The Glory
더 글로리
Moon Dong-eun was tormented so badly by her high school classmates that she had to drop out.
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6
Weak Hero: Class 1
약한영웅
An action-driven coming-of-age drama centered on Yun Shi Eun, a top student who consistently ranks in the top 1% of his school.
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7
Flower of Evil
악의 꽃
Baek Hui Seong appears to live a perfect life, with a successful career, a loving marriage, and a deep bond with his young daughter.
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8
The Price of Confession
자백의 대가
An Yun Su is an art teacher living a quiet and ordinary life until everything is suddenly turned upside down. Her husband is murdered, and she is accused of being the killer.
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9
When the Phone Rings
지금 거신 전화는
Baek Sa Eon, Korea’s youngest presidential spokesman, hails from a prestigious political family and boasts a career spanning war correspondence, hostage negotiation, and news anchoring.
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10
As You Stood By
당신이 죽였다
Eun Su works in sales at a luxury retailer and carries a childhood trauma that has shaped her entire life. Her close friend Hui Su lives with similar wounds.
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11
Are You Human Too?
너도 인간이니?
The drama follows Nam Sin III, an android created to look exactly like a human heir, who is forced to take the place of his real counterpart after a tragic accident. Nam Sin, the only…
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12
Made in Korea
메이드 인 코리아
Set in 1970s Korea, Made in Korea Season 1 follows Baek Ki Tae, an ambitious KCIA agent living a dangerous double life.
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13
The Judge Returns
판사 이한영
Judge Lee Han Yeong believes justice belongs in the courtroom. After defying orders and sentencing a powerful conglomerate chairman to life in prison, he is killed.
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14
My Love from the Star
별에서 온 그대
Do Min Jun is an alien who landed on Earth 400 years ago during the Joseon Dynasty.
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15
Undercover Miss Hong
언더커버 미쓰홍
Set in the late 1990s, Hong Geum Bo is an elite supervisor at the Financial Supervisory Service who lives only for her work.
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16
Heroes Next Door
우리 동네 특공대
This series follows a quirky reserve special forces team that reunites not for national duty or global peace, but to protect something far more personal — their families and their…
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17
A Graceful Liar
친밀한 리플리
To marry the heir of the powerful Geonhyang Group, Cha Jeong Won steps into a life of privilege under a stolen identity, using her friend’s name to enter the elite family.
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18
The Woman Who Swallowed the Sun
태양을 삼킨 여자
Baek Seol Hui is a cheerful single mother who runs a small restaurant and raises her daughter on her own.
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19
Good Boy
굿보이
Former international medalists enter the police force through a special Olympic recruitment program, trading podiums and medals for badges and police IDs.
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20
W
더블유
After surviving the devastating zombie outbreak at Hyosan High, Nam On Jo is now a university student living in Seoul, still haunted by the trauma and the friends she lost.
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21
Undercover High School
언더커버하이스쿨
Jung Hae Seong is a top agent from the National Intelligence Service who is on the verge of being demoted.
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22
Study Group
스터디그룹
Yun Ga Min is a determined student at the struggling Yusung Technical High School, dreaming of going to college despite his poor grades and notorious fighting skills.
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23
Dear X
친애하는 X
Baek A Jin grows up under the shadow of domestic violence, forcing her to suppress her emotions and survive by reading, predicting, and manipulating those around her.
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24
Crash
크래시
The Traffic Crime Investigation team has been given a bigger badge. Once a local unit at Namgang Police Station, the T.C.I now works as a regional unit under the National Police Agency's…
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25
The Perfect Lie
라이어
Kang Ji Seon teaches modern dance at an arts middle school. Her family's money troubles in childhood taught her that spotting other people's lies matters more than trusting what they say.
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Questions about this list
What is the best thriller Korean drama?
Opinions differ, but our editors put Squid Game at the top of the list, followed by Vincenzo and Signal. You can open any entry to read the story, see the cast and check when and where it aired.
Where can I watch these K-dramas?
Streaming rights change from country to country and over time, so each drama page shows the network it originally aired on. Many of these series are available on services such as Netflix, Viki, Disney+, iQIYI or Prime Video depending on where you live.
How is this list ranked?
It is an editors’ list, not a vote. We started from fan-rating charts and long-running critical praise, then ranked the final 25 by overall impact, rewatch value and how well each story holds up. As DramaHog members rate dramas, community ratings will play a bigger part.
Episode, cast and poster data from TVmaze. Descriptions are written by DramaHog.