[2][3][4] The police procedural tackles crimes and clues in the cyber world, weaving a massive, twist-filled mystery of murders, identity switches, corruption and conspiracy.

Determined to make his own mark, he breezes through the police academy,[7] and along the way racks up accolades, top of the class honors, a lot of praise and perhaps envy from his colleagues.

What appears initially to be a suicide case reveals a trail of crime and conspiracy as Hades broadcasts a video clip showing a perpetrator pushing the actress to her death.

He is caught by Yoo Kang-mi, with whom he watches a video titled 'Phantom' that reveals a murder linking right back to Woo-hyun.

Ki-young recovers and assumes Woo-hyun's identity, working together with Kang-mi to defeat the enigmatic nemesis and do justice for his friend's sacrifice.