Three expat women living in Hong Kong cross paths at a birthday party where it becomes evident they share a mysterious connection from their past.

Margaret becomes obsessed with discovering the truth behind her son's disappearance, leading her to a person of interest. Hilary tries to keep up appearances while her marriage is falling apart. Mercy is caught up in an intense affair with a man whose trauma mirrors hers.

Shifting the narrative away from the entangled lives of expats, spend one fateful Sunday with two Filipina domestic workers and a disparate ensemble of Hong Kong locals as a massive typhoon descends upon the city and the 2014 political movement reaches a point of no return.