Taekrok, an old detective near retirement, receives a threatening call from an unknown man and is falsely charged with murder. The blackmailer calls h…
Detective Taekrok gets a prank call. The unknown caller says something he cannot ignore.
Taekrok is framed for murder and gets interrogated. He delves into the past cases he undertook.
Taekrok is appalled by a mistake he made in the past and becomes suspicious of everyone around him.
Taekrok tells Jinhan about the blackmailer. He grasps the blackmailer's identity but danger awaits.
Seonga and Gyeongchan decide to help Taekrok, who realizes the blackmailer's target is not him.
Taekrok chases a man who has a key to the truth. However, the man resists.
