Season 1
16 episodes
66 min. per episode
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Two relentless hunters confront their darkest fears as they unravel a chilling mystery behind a cunning serial killer.
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Episodes
When young hotshot Han Ju Won arrives in town, he's assigned to partner with Lee Dong Sik, a Maverick cop with a gruesome tragedy in his past.
The discovery of an unidentified human skeleton raises unsettling possibilities. Dong Sik drags Kang Min Jeong back to town from a Seoul nightclub.
Ju Won's suspicions about Dong Sik's involvement in the case intensify. The emergence of a mysterious cell phone places Ju Won in a tight spot.
Coming up empty with Dong Sik's interrogation, the police root around Yoo Jae I's butcher shop. Ju Won makes an explosive statement to the public.
A fight breaks out as Dong Sik prevents Kang Jin Muk from being taken advantage of. Oh Ji Hun is confronted about the night of the disappearance.
The story of two fearless men who are willing to go through extreme lengths in their pursuit of a returning serial killer. To uncover the murderer's identity, the two are forced to look deeper than what the evidence seems to suggest.