《光》可說是《你的臉》的延續，把中山堂變成第十四張臉。蔡明亮曾在中山堂開過咖啡走廊，熟知建築的質感，趁着該處成為法定古蹟，他獲邀紀錄光影在它身上的微妙變化。

该作改编自刘宇昆短篇小说《弧》，电影的主人公是世界上首位获得不老不死能力的女性Rina（芳根），她以30岁的外貌持续着没有终结的人生。

（转自IMDB）Everything returns to normal after Chernobyl. That is, everything but art. Most of the great works are lost, and it is up to people like William Shakespear Junior the Fifth to restore the lost artwork of the human race. He finds strange goings-on at a resort enough to remind him of all the lines of the play, dealing with mob boss Don Learo and his daughter Cordelia, a strange professor named Jean Luc-Godard (sic), who repeatedly xeroxes his hand for no particular reason. He is followed by four humanoid goblins that keep tormenting Cordelia. There is also the gentleman whose girlfriend, Valerie, isn't always visible. Then the film is sent off to New York for Mr. Alien to edit.

高中女生冈村妮诺（饭丰万理江 饰）虽然渴望成为一个开朗乐观的女孩，然而现实生活中她始终无法与人顺畅自如交往。除了父母外，似乎只有那站在肩头假装标本并被她称为“老师”的鹦鹉（高桥茂树 配音）才是唯一说话对象。紧邻妮诺家的住宅里，住着一个帅气风趣的男孩，那就是与妮诺就读同一所学校的明星学生吉良悠二（中川大志 饰）。即便两人住得如此至今，但是性格有着巨大反差的两个人却从来没说过一句话，妮诺更不敢奢望与对方发生点儿什么。某天，妮诺从父母（安田显 & 三浦理惠子 饰）口中得知，吉良居然只剩下一年的生命了！紧接两人竟然阴差阳错成为了情侣。最后的365天，妮诺陪伴吉良同学一同走过……本片根据みきもと凜的同名漫画改编。