In the remote village of Hope Harbor, police chief Bum-seok (Hwang Jung-min) and officer Sung-ae (Hoyeon) are called to find a mysterious creature that has wreaked havoc on the village. In the nearby forest, a group of hunters set out to track the beast and find themselves hunted instead. But all is not as it seems, and perceptions can be misleading. What begins as ignorance plants the seed of disaster, escalating through human conflict into a tragedy of cosmic proportions.