Dewight has a problem shut away deep in his mind. Old Man Kavenaugh has a problem locked away in his decrepit shed behind his rural home. When Dewight's car breaks down on a lonely road near Kavenaugh's abode, the two have a chance encounter that spirals into an ever increasing bizarre, horrific, and nightmarish journey.

制作了超过十年的过程中，咆哮是一个大胆的电影实验：惊悚片展示的威严和非洲狮的凶猛，拍摄地点几十之中使用普通的演员，而不是特技实际未经过培训的大型猫科动物。编剧/导演诺埃尔·马歇尔明星汉克，在非洲的医生，刚直不阿博物谁允许狮子，老虎，猎豹和其他大型猫科动物自由地漫游在他的遥控房地产。虽然离保护动物免受盗猎者，汉克的家庭（包括马歇尔的现实生活中的妻子和女儿，蒂皮赫德伦和梅兰妮·格里菲斯），到达他的家，由具有溢出的房子大量石狮大步。