After the signing of the Sino-British Joint Declaration, Hong Kong Island entered the transitional period (1997), and social undercurrents surged. The colonial government's governance was loosened. Although the Independent Commission Against Corruption had taken shape, there was still a shadow of corruption within the police force. Underworld forces (such as the Triads) were at their peak. At the same time, they faced unknown fears after the return. Some people tried to "transform" or expand.
The neon lights of Mong Kok, Yau Ma Tei, and Tsim Sha Tsui are intertwined with crime. Piers, nightclubs, mahjong parlors, and financial markets form a complex stage. The circulation of Hong Kong dollars, pounds sterling, and renminbi has led to rampant smuggling, money laundering, and financial crimes.