Korea is renowned for its plethora of top-notch crime psychological thriller movies that captivate viewers. Below is the definitive list of the top 15 best Korean crime psychological thriller movies.

1. DEFENDANT (2017)

DEFENDANT follows the story of Park Jung Woo, a renowned prosecutor in Seoul. Suddenly losing all his memories, he finds himself facing a death sentence. With only fragments of memory remaining, Park Jung Woo must prove his innocence against false accusations. His journey to clear his name from the death penalty grips viewers from start to finish.
2. THE GUEST (2018)

THE GUEST – The Visitor is the most popular action-packed psychological crime thriller of 2018 in South Korea. It depicts the battle against cruel supernatural forces that disrupt human tranquility. Yoon Hwa Pyung, born with the bloodline of a shaman, hunts down malevolent spirits to restore peace. However, Kang Kil Young, an honest police officer, dismisses the existence of demons as nonsense. The collaboration between the police officer and the exorcist creates compelling and contrasting narratives.
3. MOUSE (2021)

MOUSE – The Human Hunter leaves viewers trembling at every massacre scene. The series revolves around individuals with multiple personality disorders due to genetic codes altered in the womb, leading to a penchant for serial killing. The gruesome and frenzied murders instill fear in city dwellers, keeping them indoors. Jung Ba Reum, a rookie seeking justice, ventures into the most perilous territories to unravel criminal clues.
4. FLOWER OF DARKNESS (2020)

FLOWER OF DARKNESS – This gripping tale unveils that nothing is more terrifying in life than betrayal. It follows a couple who have been together for 14 years, but the husband turns out to be a serial killer, keeping his horrifying secrets hidden behind every smile. How will the wife's love endure when her husband conceals chilling truths behind each victim?
5. UNRELENTING JUSTICE (2019)

UNRELENTING JUSTICE – Revolving around Park In Ae, who served 18 months in prison for justifiable self-defense. In Ae's family, there's only her younger sister, Park Eun Hye, who struggles with neurological issues. One day, Eun Hye disappears after school, prompting In Ae to investigate her sister's whereabouts. However, Eun Hye's school harbors sinister mysteries surrounding child abduction.
6. PARALLEL REALMS (2020)

PARALLEL REALMS – Train delves into the interplay between reality and illusion in the void, interconnecting seemingly disparate stories. It follows Seo Do Won, a renowned detective who dedicates himself wholeheartedly to his work. Besides being a detective, Do Won is also an exemplary father. The cases he tackles are often extremely complex, requiring him to simultaneously navigate multiple streams of memory to unravel them.
7. AFTER-SCHOOL PURSUITS (2020)

AFTER-SCHOOL PURSUITS – Extracurricular portrays the youth of its main characters as they attend the same school. Their extracurricular activities lead them to discover unsettling truths within their city. Will they dare to persist in pursuing those mysteries to their conclusion?
8. EERIE SIGNALS (2016)

EERIE SIGNALS – A Chilling Journey is embarked upon to unravel the intricate threads of a highly complex case. The series weaves together narratives from the past and present to aid viewers in the hunt for the perpetrator alongside the main character. However, the search for the lingering memories of the culprit will leave viewers astounded...
9. PAST THE THRESHOLD OF DARKNESS (2021)

PAST THE THRESHOLD OF DARKNESS – Highly acclaimed in 2021, Beyond Evil has garnered numerous prestigious awards. As night falls, humanity morphs into various different personas. Lee Dong Sik is a skilled detective who specializes in unsolvable cases. However, due to an unintentional mistake, he is demoted from his position. His life takes a turn as he steps away from his crime-solving duties. Nevertheless, an encounter prompts Lee Dong Sik to seek out clues without the protection of anyone else.
10. WANDERER (2019)

WANDERER – A Hit Detective Series in the land of Kimchi. The show follows an unsuspecting duo who stumble upon the nation's dark secrets, facing escalating dangers each day. Go Hae Ri works as an intelligence operative for the National Intelligence Service (NIS), while her father was a Navy Lieutenant Commander. After his passing, Hae Ri inherits many national secrets, leading them to confront the terrifying NIS.
11. MEMORY AGENT (2020)

MEMORY AGENT – Revolves around the crime-solving escapades of the renowned detective Dong Baek. Alongside his detective work, Dong Baek possesses the ability to read people's memories upon touch. Thanks to this extraordinary power, Dong Baek can uncover every criminal's secrets without the need for coercion or torture. However, he faces a series of serial killings where his supernatural abilities seem futile...
12. CLOAKED REALITIES (2021)

CLOAKED REALITIES – A riveting tale of the main duo, Han Jung Hyun, who conceal many secrets. Living incognito under an assumed identity, Han Jung Hyun leads the investigation unit targeting high-ranking corrupt officials. Operating within the national security network, Jung Hyun encounters numerous troubles threatening her daily life. Additionally, solving corruption cases keeps viewers glued to the screen.
13. SONIC TRACE (2017)

SONIC TRACE – Tagged with a 19+ rating due to bold and chilling scenes, Voice revolves around detective Moo Jin Hyuk's descent into chaos after the tragic death of his wife. In his pursuit of justice, he meticulously traces every clue in his wife's heartbreaking case. Analyzing every voice, Moo Jin Hyuk uncovers the secrets lurking beneath.
14. L.U.C.A: MYSTERY UNFOLDED (2021)

L.U.C.A: MYSTERY UNFOLDED – The Beginning unravels mysterious tales within the city wrought by various malevolent forces. Ji Oh is known as a reserved man, always working solo and thrust into a strange world. Here, Ji Oh is bestowed with miraculous powers that make him superior to others, yet conflicting with his own rationale. With everything bestowed upon him, Ji Oh must seek answers to his existence in this world.
15. REVEAL WHAT YOU WITNESSED (2020)

REVEAL WHAT YOU WITNESSED – Criminal Memory brings forth captivating tales within the realm of South Korean law enforcement. Oh Hyun Jae is a leading criminal psychological analyst who has helped solve numerous cases for the police. However, a murderer seeks revenge by taking the life of Hyun Jae's fiancée. With intense love, Oh Hyun Jae is determined to regain justice and bring the villain into the light.
In this article, Mytour has shared with you the top 15 most outstanding Korean crime psychological dramas. Have a great day!