Surveillance 1-3; 窃听风云 1-3

These installments of three are some of Hong Kong's crime action thriller genre at its best in recent years. A trio of male leads, played by veteran character actors 刘青云，吴彦祖，古天乐, recurs in the original and two sequels as vastly different characters. There are no logical plot connection between the three movies except for the dominant financial crime theme and the creepy, chilling, sometimes hair-raising high-tech surveillance games as the enabler.

As essential a language to many Hong Kong movies, the trilogy effortlessly deals with price manipulation, insider trading, shady real estate development as well as cops, mafia, street gangs and the thin line that divides them.
The last installment had just won the best screenplay, actor and supporting actor awards at the 34th Hong Kong Film Award in April, 2015.

The official English title was advertised to be "Overheard" which, I'm sorry to say, is flatout incorrect.

Chinese subtitles. Enjoy the movies:
Surveillance 1; 窃听风云 1
Surveillance 2; 窃听风云 2
Surveillance 3; 窃听风云 3