In The Light tells the story of a caregiver who becomes close friends with a challenging patient that has grown frustrated with life due to her delicate and demanding medical condition....
查韦斯（哈利•戴恩•斯坦通 Harry Dean Stanton 饰）迷失在德州荒无人烟的沙漠中，因为身体虚弱而昏迷医院联系了他的弟弟沃特（迪恩•斯托克维尔 Dean Stockwell 饰）来接他。出院的查韦斯一直沉默，直到看见“巴黎，德州”的牌子，才终于开口。 回到洛杉矶弟弟家，查韦斯见到了儿子——亨特（亨特•卡森 Hunter Carson 饰演），弟弟弟妹其实是养父养母。但是亨特对突如其来...