影片讲述艺术家、女权主义先驱希尔玛·艾弗·克林特神秘的一生，希尔玛被认为是西方世界最早的一批抽象艺术家，她创作的作品多达1300余件。塔拉·霍尔斯道姆和母亲莉娜·奥琳分别饰演年轻与年迈时期的希尔玛，汤姆·拉斯齐哈饰演希尔玛的导师斯坦纳。
At17:00everyday,Andrew,amiddle-agedman,driveshomefromworkthroughMelbourne’soutersuburbsinpeak-hourtraffic.Occasionally,heoffersalifthometoayoungercolleague,David.Overayear,theirtentativesmalltalkgiveswaytoawarmfriendshipandopenconversationwithintheconfinesofthevehicle,incrementallyrevealingtheirlives.Onemaywonderwhatathree-hourfilm,setalmostentirelyinacarandshotwithafixedcamerafromtheback,candeliver?Theanswerisanunexpectedlyengagingandentertainingobservationoftherhythmsofdailylife,andacatalogueofsuburbanworries.Insensorialterms,ThePlainschartsthepassageoftimeastheseasonschange.Thepitter-patterofrainandthefamiliarcocoonofthecarprovideasenseofcomfortandsafetyfromtheoutsideelements.Thecaristheliminalspacebetweenworkandhome,asthedayispondered,thenightplanned.Documentaryelementsexistbeyondthewindscreen,asafictioncoursesthroughthevehicle.ThePlainsisaroadmovieunlikeanythingyouhaveseenbefore.
高宇蓁饰演性工作者，为了实现梦想，被卖到国外从事性工作。电影除了是对性工作者这一社会边缘群体的关注，也阐述女性议题。黄冠智饰演高宇蓁的弟弟；段钧豪、黄冠智饰演经常光顾茶室的警察；郭耀仁饰演茶室围事、也是妈妈桑的姘头；蔡嘉茵饰演妈妈桑。众人将共同演绎大时代底下边缘角落的小人物故事。
