In "Abyss City", a city soaked in eternal rain and flashing neon lights, the truth is a luxury product, and human nature is the cheapest bargaining chip on the trading table.
Chen Mo, a former police detective and now a private detective, is like a rusty screw stuck in the dark corner of the city machine. Relying on a little expired sense of justice and a lot of alcohol, he dealt with the boring errands of derailment investigations and searching for missing pets, until a mysterious woman opened the door of his crumbling office with a seemingly simple missing persons case and a wad of banknotes that were hot to the touch.
Searching for a missing rich kid sounds like yet another excuse for the fuss of upper class society. But as the investigation deepened, Chen Mo found that he had been dragged into a huge whirlpool jointly woven by the giant enterprise "Tianqiong Group", the intricate underground organization "Rat Road" and the corrupt core of power.
Lies are the air here and violence is the only lingua franca. In this deadly game, Chen Mo must use his cynical humor as a shield and his scarred fists as a spear to confront the darkness of the entire city. Not only does he want to find the missing person, but he also wants to find himself, who has long been blurred in the neon and rain.