Li Yuan unexpectedly falls into a vortex of time and space in 1980s Hong Kong, where light and shadow intertwine. Undercurrents churn in the underworld, and all kinds of people take turns playing power games. This is a bloody arena where lives are risked on the edge of a blade, but also a dream factory where gold lies everywhere. Hard fists, a cold heart, and a quick mind: with these three weapons, you can fight your way through Causeway Bay.
At home is his troublemaking younger brother, Li Wen. At the police station, his partner Chen Jiaju has a garlic-shaped nose. Above him looms his iron-faced superior, Huang Zhicheng, and under his command is the capable detective Li Wenbin. He trades shooting skills with the quick-draw expert Peng Yixing, braves life and death alongside the poker-faced bodyguard Li Jie, watches as Brother Xiao Ma lights a cigarette with a burning banknote beneath his fluttering trench coat, and listens to the irreverent Zhou Xingxing crack wise.
The formidable businesswoman Salina sends him flirtatious glances. Teacher A Min from the tutoring center is gentle and charming, while the mischievous schoolgirl Cindy is full of personality. The talented gallery artist Ruan Wen has an otherworldly grace, and the tough-as-nails female commando Yazi is a skilled fighter. Cruise-ship heiress Huixiang is lively and playful, while negotiation expert Fang Jiexia is peerless in strategy.
