The next day, the taxi driver's dead body has been strung up on a crane in front of the police station, and Choi is assigned to the case amidst widespread media attention.

Choi's ordeal begins as he tries to misdirect the investigation and remove evidence, to the growing suspicion of rookie detective Cha Dong-jae.

Then a man, named Jin Kyu who is a former movie star, claiming to be the killer turns himself in and threatens to reveal the truth unless Choi reopens an old case.

Later on, Jin Kyu declares he gonna kill the chief of police because of his involvement in his father's case and Choi is too late to save the chief as the bomb in his car explodes, killing him Eventually, Choi confronts Jin Kyu and he reveals that he is not the mastermind but his gay lover who turned out to be Cha Dong-Jae.

His mentally disable father was always abused by the employers and customers of the illegal gambling so he decided to kill them all in revenge for the mistreatment by putting cyanide in their drinks.