Hyun-bin, an aspiring journalist, is promised his dream job by Chairman Choi if he can locate a man named Kim Do-sik. Following Choi's directive, Hyun-bin travels to Mongolia to search for Kim. As he gets closer to finding him, strange occurrences begin to unfold, leading Hyun-bin into a series of inexplicable events. Eventually, he crosses a line that should not have been crossed, confronting a reality beyond his control.
A serial killer ruthlessly hunts down a deaf woman through the streets of South Korea after she witnesses his brutal crime.