On Kate's 21st birthday camping trip, her friends encounter Piglet, a monstrous human-pig hybrid who brutally murders one of them. They uncover Piglet's origins and Kate must confront her past to survive the relentless killer.
父亲离世后，藤井佳奈返乡照顾状态反常的母亲，想要挽回曾经缺失的亲情。但身边接连发生诡异灾祸，预感一一成真，佳奈惊恐发现，母亲早已异变为别的存在，留存下来的爱化作致命诅咒，厄运正朝着家族亲友不断扩散。
