It was raining non-stop when Hong Kong was rocked by the tumultuous events of October 2014 (the "umbrella movement"). In a fixed sequence shot, the film captured students meeting each other in the hall, in the rooms, discussing, arguing about or remaining indifferent to the event, while it continued to rain outside.

A phone call takes two young men a trip down the memory lane. Two boys and one girl, a classic teenage love triangle. Being best friends, Chung has always been the humble guardian angel for the young couple Yao and Shan. “My virginity will only be dedicated to the one I love” is the motto of Chung. The three remains close friends when they grow up, until the death of Shan breaks the harmonious relationship among them.

Joyce and Lily have a different class background but stealing unites their friendship. Joyce is the poor one who cannot afford a smart phone whereas Lily is the posh one who turns into a kleptomaniac due to a detached relationship with her family. When Lily spots Joyce stealing a phone from their classmates, Lily helps her out. They even join hands to be partners in crime. Lily teaches Joyce the art of stealing while Joyce appreciates her company. However, too many successes make them go further and further. While starting from shoplifting, they decide to pickpocket on streets. Will their ambition beat them down and have them arrested? Throughout Speaking Low, Joyce and Lily’s friendship also entails an ambiguity of their sexuality.