潮汕阿嬷叶淑柔一直守着平淡的日子，安享晚年。孙子晓伟因债务缠身，瞒着家人远赴泰国，寻找传闻中的亿万富豪阿公郑木生。然而，晓伟最后却带回了一个震惊整个家族的消息：阿公早已不在人世，那个与阿嬷一直在书信中谈情说爱的，竟是一个陌生人。随着晓伟的调查，一段隐藏了半世纪的感情赫然袭来，击中了阿嬷的心。

2019 film directed by Han Han

Tang Zhijun, an editor of a science fiction magazine, attempts to find signs of an alien civilisation. When a strange young man claims to have received instructions from aliens, Tang and his team follow him in search of extraterrestrial creatures.