意大利的一个小镇上，Irma（阿莉达·瓦莉 Alida Valli 饰）的在悉尼工作的丈夫去世了，而她也决定和她的情人Aldo（史蒂夫·柯臣 Steve Cochran 饰）分开。Aldo苦苦挽留Irma无果，便带着年纪还小的女儿Rosina离开了小镇。Aldo先是去找了一个一直钟情于他的女子Elvia，Aldo却发现自己无法爱上她，又离开了。漂泊的路上，Aldo到处寻找工作。先是在一个加油站，加油站的寡妇Virginia给了他一份工作，两人之间也产生了感情。但不久后Aldo又离开了，找到了一份短暂的工作，认识了Andreina，一个妓女。警察经过，Aldo只能离开，经过加油站的时候，Virginia告诉他，Irma给他寄了封明信片。Aldo又踏上了回去寻找Irma的路......

极限运动达人赵风（王大陆 饰），误打误撞闯入了一场国际犯罪交易，不得不跟随国际特工（米拉·乔沃维奇 饰）一起前往布达佩斯。在这里他与废柴刑警淼淼（张榕容 饰）、民间科学家丁山（许魏洲 饰）与待业医生LV（刘美彤 饰）组成一支素人特工小队。这四个特工小白和高级国际特攻米拉一起，与恐怖分子开启了一场又惊又喜的斗争。

For years, detective Jae-hwan has been obsessed with catching Jin-hyuk, the serial killer responsible for the death of his partner and brother-in-law, even if the path to revenge means skipping a few rules. But, when the much-delayed encounter finally comes, things don’t go at all as expected—after a chase and a muddled accident and having been missing for a month, Jae-hwan wakes up handcuffed to a hospital bed, only to discover that he’s trapped in Jin-hyuk’s body and that, in turn, the killer is taking his place alongside his family. But this is only the starting point to a sinuous, extreme narrative filled with surprising twists and tinged the red of blood and neon lights. In his brutal debut, Kim Jae-hoon appropriates the body switch trope in order to give shape to a feast for genre film lovers.源自：

《瀑布》的故事灵感来自导演钟孟宏友人发生的真实故事，以电影《瀑布》中层层暗喻与不停撞击两个女主角的故事为设计概念主轴，就有如海报中的草丛，缓缓持续着围绕这着母女，像是保护他们又像是被团团困住。而她们背后的蓝色帏幕象征未完工且令人期待的未来，蓝色的基底又像是层层水幕，大量的水花如瀑布般向下坠落。