Daonuea had a crush on Kabkluen in high school and confessed his feelings on the last day of his senior year. However, he was gently rejected by Kabkluen. Now, starting University, Daonuea discovers that one of his dormmates is none other than his High school love, Kabkleun. What will happen when you stop loving someone but they begin loving you?。丁常旺(郭晋安 饰)自幼就患有智障,智力一直停留在7岁水平,由单身母亲一手带大。阿旺虽然智力不高,但为人正直、十分热心,他和街坊阿凤(宣萱 饰)从小一起长大,青梅竹马;阿凤升学时阿旺甚至将自己的全部积蓄交给阿凤,让她能安心在美国完成学业。阿凤学成归来后进入了本地一家大集团钟氏集团工作,阿旺为了保护阿凤不被坏人欺负,亦进入钟氏集团当了一名信差。钟氏集团的老板(秦沛 饰)其实就是阿旺的亲生父亲,他同父异母的大哥钟子聪(黄宗泽 饰)也在钟氏任经理。阿旺乐于助人、尽职尽责的人生态度感染周围的许多人,只是,他7岁的智力水平能否应付成人世界里的虚伪?。影片根据推理作家中山七里的小说改编,深川荣洋执导,两人在电影里将搭档饰演刑警,讲述以安乐死为手法的连环杀人犯和刑警搭档之间展开的惊心动魄的攻防战。。