台灣西南角落，日漸下沉的蚵村，迎來又一次王船慶典。年近三十的盛吉離村多年，此時故作風光，扮了個叱吒都會商場的成功姿態回來。隨著祭典升溫，盛吉得用脆弱偽裝，面對顧了一輩子蚵地的頑固父親順明；而在另一頭，還有對他的「成功」眼紅已久的兒時玩伴昆男，此刻正想靠著盛吉鹹魚翻身。 潮水將退：小小蚵村，人人有張難以卸下的面具。

In the remotest corner of southern Taiwan, the sinking fisherman´s village prepares for another carnival for the god. Sheng, a man reaching his 30s, returns in disguise as an established urban elite. As the carnival escalates, Sheng confronts his persistent father who farms oysters throughout his life and the childhood buddy who always envies his fragile “successfulness.”