One Clue One Killer A Chillingly Tragic Series of Murders… She is the Killer! A serial killer is on the loose. Near the dead bodies are Princess Aurora stickers presumably left behind by the murderer. Detective Oh (Mun Seong-geun), who is in charge of the case, believes Jeong Soon-jeong (Uhm Jung-hwa) to be the killer after reading the message she leaves behind on a crime scene security surveillance tape. In it, she taunts the authorities, “Catch me if you can.” However, there are no similarities linking any of the cases together. Soon-jeong confuses the police by employing different killing methods with each of her victims, until one day, she reveals her next crime scene to the public, leading the army, the police, and the press into a deserted waste dump located on the outskirts of the city…