Feng, who has ended his undercover career, is honest and  uncorrupted, but the shadows of the past are lingering. His boss, girlfriend  and father don't trust him. With a gunshot, his colleagues fall to the ground  and his old friends become strangers. The terrible thing is that Feng has  also become his own enemy. Because of the great suffering, he takes cocaine  as the most immediate relief. The gray and dark tones under the filter, the  bleak blue under the neon light and the illusional flashback. Is he desperate,  or is he in a country where no one is in there? The most dangerous person is  himself who lives in the nightmare....

Full-time assassin Ah Qi (starred by Julian Cheung) is back. This time, he receives a mission to kill Fa’s new girlfriend. At lightning speed, Ah Qi shoots Fa and jumps into the sea with his girlfriend to escape. Desperate, Ah Qi rushes to Taiwan and goes to his friend Xiao Gui who is now enchanted by Zhiling. In order to redeem her, Xiao Gui doesn't hesitate to kill. The appearance of Ah Qi makes Zhiling, who has always looked down upon Xiao Gui, colder to Xiao Gui. Xiao Gui's blood boils with indignation and he completes the task with Ah Qi, but what awaits them afterwards is the precarious brotherhood......