这是一部关于一对恋人佩特雷拉（汉娜·斯坦布丽姬　饰）与菲尔加尔（尼亚尔·布鲁顿　饰）的故事，他们居住在一个被恐怖阴影笼罩的小镇。在这里，一只神秘的巨大野兽，一直在杀害当地人，并使得当地剩余的居民时刻处于深入骨髓的恐惧中。同时，两位来自于爱尔兰的神秘旅行者到达了这里，伴随他们而来的还有神秘的仪式和魔法。为了镇上的人们的安宁，这两位旅行者决定与菲尔加尔的母亲（凯特·迪基　饰）一起，除掉这个可怕的野兽。

Set in a society where all men live under 'The Women’s Safety Act', meaning they are bound by a strict curfew from 7PM to 7AM every night, with their movements tracked by an ankle tag 24 hours a day. When a woman's body is discovered, brutally murdered during curfew hours and left on the steps of the Women's Safety Center, veteran Police officer Pamela Green believes that a man is responsible. But in a world where men are bound by the curfew system, her theory is rejected.