In 2020, Seok is a special investigator dispatched to the border between China and a unified Korea. A year earlier, his son was kidnapped and accidentally killed in a failed rescue mission. Still suffering from memories of the mistakes he made with that case, he is assigned to the kidnapping case of the National Police Agency’s director. Criminal psychologist Hee-su, who witnessed the kidnapping, teams up with Seok in the investigation. They set about on a hunt for the se...more

In 2020, Seok is a special investigator dispatched to the border between China and a unified Korea. A year earlier, his son was kidnapped and accidentally killed in a failed rescue mission. Still suffering from memories of the mistakes he made with that case, he is assigned to the kidnapping case of the National Police Agency’s director. Criminal psychologist Hee-su, who witnessed the kidnapping, teams up with Seok in the investigation. They set about on a hunt for the serial killer, and find that every victim happened to wear the same unusually shaped pendant. They find that the ideas for his crime techniques were copied out of a psychologist’s thesis…

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