污垢化为灰烬，肉体化为灰尘

传说中有一个能决定人生死的代号为“清洗”的连环杀手。埃里克和雪莉在开车回家的路上，为了躲避交通堵塞选择走了一条捷径，却不曾想到，遇上了连环杀手“清洗”。埃里克被生存了下来却杀手控制，而雪莉却惨遭杀害 。一年后，一群高中毕业生外出探险，结果意外来到了“清洗”的巢穴。Purge: To put to death, eliminate what is undesirable. The serial killer known as Purge lived and died by this code. But is he dead? Driving home from a road trip, ERIC and SHELLY take a back road to avoid a traffic jam. They encounter the serial killer Purge. Eric survives but Shelly is murdered. A year later, a group of adventure-seeking high school grads venture to purge's lair. Among them is Eric's brother JUAN. Eric sets out to save his brother, and get revenge on Purge. For the six teens, their imperfections will be the deciding factor if Purge shows them mercy. But if everyone is imperfect, will any of them survive?