Korean television has increasingly turned to real-life criminal cases for inspiration, creating gripping dramas that explore the darkest corners of human nature. These series don’t just entertain—they examine systemic failures, societal issues, and the psychological depths of both criminals and victims. By drawing from actual events, they spark important conversations about justice, safety, and social reform. Here are the most compelling K-dramas inspired by true crimes.
Signal (2016)
Inspired By: Multiple unsolved Korean cold cases
Episodes: 16
Where to Watch: Netflix
This time-bending thriller follows a profiler who discovers a walkie-talkie that connects him with a detective from the past. Together across time, they work to solve cold cases and prevent crimes before they happen.
“Signal” draws inspiration from several real Korean cases, most notably the Hwaseong serial murders (1986-1991), where 10 women were killed and the case remained unsolved for decades. The drama also references the 1997 Sampoong Department Store collapse and other tragic incidents that exposed systemic corruption and negligence.
The series became a phenomenon not just for its clever time-travel mechanics, but for highlighting how institutional failures allowed crimes to go unsolved. It prompted renewed public interest in cold cases, with the real Hwaseong case finally being solved in 2019 through DNA evidence—though too late to prosecute due to statute of limitations.
Memories of Murder (2003 Film) / Through the Darkness (2022)
Inspired By: Korea’s first criminal profiler and various cases
Episodes: 12
Where to Watch: Disney+
While “Memories of Murder” is the acclaimed film about the Hwaseong murders, “Through the Darkness” explores the early days of criminal profiling in Korea through the eyes of the country’s first profiler, inspired by Kwon Il-yong’s real experiences.
The series depicts actual cases including serial killers, kidnappers, and violent criminals from the 1990s and early 2000s. It shows how profiling techniques were introduced to Korean law enforcement and the resistance profilers faced from traditional investigators.
Each episode tackles a different case, showing how understanding criminal psychology helps solve seemingly impossible crimes. The drama doesn’t sensationalize violence but focuses on the methodical work of building profiles and the emotional toll on investigators.
Juvenile Justice (2022)
Inspired By: Various juvenile crime cases
Episodes: 10
Where to Watch: Netflix
This legal drama follows a judge who dislikes juveniles but must preside over juvenile court. Each case draws from real incidents involving underage offenders, including violent crimes committed by minors who often receive minimal punishment under Korean law.
The series tackles controversial questions: Should violent juvenile offenders be tried as adults? How young is too young for criminal responsibility? Can rehabilitation work for all offenders? These debates mirror real public discourse following high-profile juvenile crimes in Korea.
One particularly disturbing case in the drama echoes the real 2017 Incheon Primary School murder, where an 8-year-old girl was killed by a teenage girl. The perpetrator’s young age meant limited legal consequences, sparking nationwide outrage and calls for juvenile justice reform.
D.P. (2021-2022)
Inspired By: Military abuse and hazing cases
Episodes: 6 per season (2 seasons)
Where to Watch: Netflix
Based on Kim Bo-tong’s webtoon drawn from his own military experience, “D.P.” follows soldiers who capture army deserters. Each episode reveals why soldiers flee, exposing systematic bullying, violence, and institutional failures within mandatory military service.
The series references real incidents including the 2014 shooting rampage by a soldier subjected to severe bullying and numerous suicides and deaths from hazing. These cases sparked national debates about military culture reform, though progress remains slow.
“D.P.” caused controversy for its unflinching portrayal of military abuse, with some critics claiming it damaged Korea’s military image. However, many veterans confirmed the accuracy of its depictions, and the series contributed to ongoing discussions about necessary reforms.