Lee Shan and Ayo are ex-Interpol agents who are now bounty hunters, chasing fugitives for cash rewards. When the two of them are framed for a hotel-bombing, they join hands with a legendary bounty hunter named Cat, along with her teammates, to find the real bomber.
A "gangster noir" set in the 1970s, when Gangnam, Seoul goes under development. Political powers and darker organizations collide as they seek to grab control of the influential and exclusive area.
A high school teacher in 1983 and a detective in 2015 join forces through their dreams to change the perilous fate of the woman they both love - 30 years apart.