三位中學好友相約25年後見面，2022年終於聚首。他們當天因為智能手機，各自經歷了不平凡的一天，最後為自己的人生找到了新意義。

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We're in Hong Kong in 2022. 25 years after the handover and 25 years after the graduation of three classmates who decide to organize a reunion. In bittersweet tones, director Amos Why captures the unusual day of the three and their (and our) relationship with their phones: one of them has forgotten theirs, another one's has been hacked, while the third's keeps receiving strange messages. And the fourth protagonist is Hong Kong itself.