With the execution time only getting closer and hindered by the dominant authoritative power that only wants to cover up the case, both Dong Baek and Sun Mi's separate chase to save the lives of the kidnapping victims slams into a brick wall. However, Dong Baek continues his pursuit with only the ambiguous clue of the Claw Hammer serial killer, a mysterious image of a red pig seen in one of his memory scans. (Source: Viu) 

Dong Baek and Sun Mi finally come face-to-face with the real Claw Hammer serial killer. Now, it's a fierce race against time—Dong Baek and Sun Mi, who are working together to secure murder evidence, against those who want to destroy it. However, within their battle, they face yet again another catastrophic event. (Source: Viu)