岁月忽已暮

　　Dong-hyeon and Yong-joon coincidentally meet at an acting audition. A strange gentleman appears in front of the both of them who are sick of failing at these auditions and suggests something to them. Meanwhile, Ayaka comes to Korea with her best friend Saori to meet her fiancé, Min-joon's parents. She runs into Dong-hyeon and Yong-joon who ask her to star in something and although she's not up for it, she's ushered into doing it by Shiori who loves handsome men. They move locations to a run-down facility and suddenly all exits are blocked and the four of them are trapped. Ayaka looks for an exit but instead finds cameras put up everywhere and gets the feeling that they are being watched. She suspects Yong-joon and Dong-hyeon of being behind this. Suddenly, young men overdosed with gas appear out of no where and try to rape Ayaka and Shiori. Dong-hyeon and Yong-joon fight them to save the women. All this is recorded live and sent to a crowd who is watching from a theater,enjoying it. Yong-joon and Shiori escape into another room but soon they are gassed and they suddenly want each other so bad. Then Shiori loses her mind and kills Yong-joon. Min-joon is watching this amongst the crowd at the theater. What happened between Ayaka and Min-joon...?

　　回首青春，这些年最不想错过的人，一直是你。可我这一次，真的错过你了。
　　影片以游记随笔《青春18×2 日本慢车流浪记》为原型。18年前，来自日本的背包客阿美（清原果耶 饰）来到了高中生吉米（许光汉 饰）打工的店中，两人在同一家店中一同工作度过了一个夏天。吉米渐渐对阿美产生好感，然而阿美将回到日本。面对无法整理心情的吉米，阿美提出了“一个约定”……时光流逝，回到老家的吉米发现了阿美18年前从日本寄来的明信片。初恋的记忆涌现，吉米乘上通往阿美的故乡的列车，开始了独自一人的日本之旅。

 爱尔兰，Redmond Barry(瑞安·奥尼尔 Ryan O'Neal 饰）从小和母亲寄居在舅舅家，后来爱上了他的表姐Nora。Nora的父亲却想把她许配给一个英格兰将军John Quin。于是Barry向Quin提出决斗，决斗中Barry射中了Quin，误以为将他杀 死了，匆忙逃离家乡。路上他遭遇抢劫，走投无路只能加入英国军队。在军队中他才得知，其实Quin并没有死。Barry从英军中出逃，却加入了普鲁士军。战争结束后他成了普鲁士军官Potzdorf的心腹，更让他去监视一个在普鲁士的爱尔兰间谍。Barry却和这个爱尔兰骑士惺惺相惜，爱尔兰骑士带他出入赌场，收获颇丰。Barry觉得自己应该找个有钱的女人，于是盯上了Lyndon爵士的夫人Lady Lyndon。Lyndon爵士病重身亡，一年后，Barry和Lady Lyndon结婚，也成了一名贵族，改名为Barry Lyndon。但Lyndon爵士和Lady Lyndon的儿子Bullingdon却十分不喜欢Barry，Barry也预感到自己的未来将会毁于Bullingdon手中.....

　　在一间书店打工的青年山本光（相叶雅纪 饰）和经营钢铁厂的高桥杏奈（荣仓奈奈 饰）是从小玩在一起的青梅竹马。木讷的山本创作了名为戴维克罗（剧团一人 配音）的漫画形象，虽然奋力笔耕，却迟迟未能出名。在圣诞节即将到来的日子里，一直梦想邂逅梦中情人的山本偶遇拿过许多国际大奖的灯光设计师泰素妍（韩孝珠 饰），他毫不掩饰地将心中喜悦告诉杏奈，然而并未察觉好友且喜且忧的复杂心情。在杏奈的撮合下，山本得以有机会和素妍接触交流，与此同时，他还重遇在漫画界风头正劲的大学同学北山一路（生田斗真 饰）。四个人奇妙的因缘，通过戴维克罗之手连接在了一起。
　　本片根据中村航的同名小说改编。