该片讲述男主角林柏宏饰演的稻风，因心裡障碍回答问题前会“空白五秒”，下定决心前往到日光大道展开搭便车旅行，意外邂逅了四位同是“缺角一族”的日光村民，几个人一同面对生命缺角所发生的动人故事。

林稻風（林柏宏 飾）在說話前有停頓五秒的怪毛病，今年夏天他決定突破自己，拎著一個便車招手牌、一個背包，出發旅行到了日光新村。他看著每天打扮花枝招展的檳榔西施莎莎（陳嘉樺 飾）、在海邊無所不撿的鐺共伯（蔡振南 飾）、開宣傳車到處跑的海珠姨（林美照 飾），每個人似乎都像在等待些什麼。就在稻風停留小鎮期間，停頓五秒的症狀逐漸好轉。他更察覺原來每個人心中，都藏著一塊缺角，等待拼湊成完美理想的愛。在夏日、在日光，所有人的人生缺角，最終因為「愛」而圓滿。

Everyone wants their life to a perfect circle, but always failed with a missing piece. Dao-Fung, who has strange psychological symptom, five second’s blank, had decided to cure himself by a travel and arrived Riguang village in Taitung. He met four interesting people. During stayed at there, five of them found their own missing piece due to the love among them. Dao-Fung became aware of his symptom gradually disappeared, too. (Bifan 2015)