Detective known for his impeccable record, encounters a psychopathic antagonist, sparking a life-changing confrontation.
Follows Inspector Koo as she employs her exceptional skills to track down a notorious serial killer who happens to be a university student.
Young police officer investigates the mysterious serial killer known as Gap Dong, following a family tragedy.
Sleuth Dong Baek, gifted with supernatural memory-reading abilities, teams up with criminal profiler Han Sun Mi to apprehend a brutal serial killer.
A detective and a voice profiler both having lost loved ones to a serial killer, collaborate to capture the murderer.
Oh Hyun Jae seeks revenge on the serial killer responsible for his fiancée's death, aided by junior Cha Su Young and her photographic memory.
Eun Bong-hee joins forces with renowned prosecutor Noh Ji-Wook to uncover a serial killer's identity after being falsely accused of murder.