Wen Xi (played by Gao Rongfang) was taken to the underground fighting ring of Lao Jia, the boss behind the high-profit goods industry, as a trophy for the winner of the fight.In the end, the person who wins Wen Xi is a young and mysterious Bi-American man named Xu Zheqing (played by Ren Yunjie).Lao Jia took a fancy to Xu Zheqing's mercenary-like skills, and used kindness and power to force him to stay and serve him.However, Xu Zheqing's real identity is a private security consultant, and he is here to rescue Wen Xi from getting out.After experiencing various dangers, the two joined hands to escape from Lao Jia's control.

Three years later, Wen Xi unexpectedly reunited with Xu Zheqing.The two people belong to different camps, but they are held hostage by their past emotions.This time, can the two of them join hands again to break through the darkness of the night and embrace each other in the darkest moment...