Han Po, who transformed into "Lin Po", thought he would be temporarily stable, but he suffered heavy losses one after another:
· Destined enemy: The "Burning Moth" serial murder case that had been hidden for twenty years has reappeared with the secret technique of stealing, pushing his respected mentor into the abyss of suspicion; the "ghost" lurking in the top of the police station - "Horse Face" Zhao Yuan, even plays with him.
· The tragedy of a close relative: His only "sister", the real Lin Mengchen, was devoured by fire and turned into a sleeping vegetative state because of tracing the truth about the "underground river". This heartbreaking guilt became a wound that he could not heal.
· Desperate deal: The mysterious killer "Nu Tou" conducts inhumane human experiments in the name of science; "Black and White Impermanence", who is in charge of life and death, even awakens his sister as a bait, forcing him to cross the police's bottom line and exchange the blood of innocent people for the antidote.
In repeated desperate tests, Han Po's faith continued to collapse and reshape. Should he stick to his oath as a police officer and bear the pain of losing his loved ones forever in the light? Or embrace the power of darkness and exchange for a glimmer of false hope in the midst of corruption?
When he wanders on the boundary between light and shadow, performing his duties as a policeman with the skills of a thief——
Who is the real hunter? Who is the final salvation?
