Maybe the Murderer I'm Looking for Is Not You.

A person who may be accidentally involved, two detectives who support each other, and several innocent victims. Is there something hateful about poor people, or is the murderer so cruel that he commits crimes at will. Who is the person hidden among the many victims who must be eliminated? Two criminal police officers join hands with a victim to pursue justice and save more people from persecution. In the end, they find that the murderer wants more than that.