Two sisters and their male counterparts struggle with the negative influences of their youths over a 50-year period.

In 1970s Hong Kong, the Independent Commission Against Corruption (ICAC) was formed to bring down the corruption syndicate led by British government officials. One of its top investigators is Senior Investigator Lau Kai-Yuen, who brought down countless corrupted officials. Just as he thought stability and prosperity are within reach, a new era of greed and riches takes him into a new battlefield of corruption.

When four friends head to the city for a Girl's Night Out, an unexpected ride home turns into a night of murder and terror as they are stalked by three serial killers through the dense Australian hinterlands.