Unable to repay their debts, Milan and Victor, best friends and co-owners of a Paris nightclub, are lured into a drug deal that goes bad. Tortured by police, they negotiate their freedom against an overwhelming testimony that condemns their psychotic liaison to prison. Six years later, the men's nightmare begins again when the pyschopath is granted his freedom. Now, not having talked for years, the old friends are united again in order to survive.

An attempted robbery goes awry. In vain gangsters try to calm their Albanese boss. Meanwhile one of them can't resist taking a mysterious drug. The consequences are disastrous.

Hong Kong police agent Cheung (by Aaron Kwok) works undercover in Kang’s (by Sean Lau) drug cartel, while another undercover cop Au (by Louis Koo) successfully earns their trust in an incident, a brotherly-bond is built among the three. After the Police busts the syndicate in Hong Kong, Kang subsequently hides away in the Golden Triangle, by chance he receives a tip-off about the betrayal within his circle of trust…

Two assistants, Lee Xiang and Kat, start new jobs at the financial firm Jones & Sunn. Lee Xiang is an earnest young man who naively enters the world of high finance with noble intentions. Kat on the other hand has a secret.