Kim Taek-Rok wakes up and is accused of a murder he didn't commit. He is blackmailed by the real killer into reopening his previous case with the promise that he will clear his name.
EPISODE 1
Episode 1
Detective Taekrok, due to retire soon, receives a prank call. Taekrok disregards the call at first, but the caller keeps on menacing Taekrok. Taekrok has no choice but to follow the unknown caller's instructions.
EPISODE 2
Episode 2
Jinhan is appointed as the new chief inspector, making Taekrok colleagues begin to doubt him. Fortunately, Taekrok gets a chance to exonerate himself, but the blackmailer forces him to scrutinise cases from his past.
EPISODE 3
Episode 3
Taekrok is appalled by a mistake he made in the past and becomes suspicious of everyone around him.
EPISODE 4
Episode 4
Taekrok tells Jinhan about the blackmailer; he learns the blackmailer's identity, but danger awaits.
EPISODE 5
Episode 5
Seonga and Gyeongchan decide to help Taekrok, who realises the blackmailer's target is not him.
EPISODE 6
Episode 6
Taekrok figures out the blackmailer must be the boss of a shady gang that recently went into hiding. If Taekrok arrests the boss, he can reveal the truth and he will be cleared from the accusations against him.
Lee Seong-min
Jin Goo
Kyung Soo-jin
Lee Hak-joo
Kim Hong-pa
Kim Tae-hoon
Han Dong-hwa
Yoo Sang-won
Jang Sin-ae
