Gi Cheol begins work as a contract gym teacher at a high school in a quiet countryside village. He feels weird because a female high school student went missing, but nobody in the village seems to care. Only Yoo Jin, who is the missing girl s friend, is sure that her friend has been kidnapped. Yoo Jin and GiCheol work together to find the missing girl, but Gi Cheol learns that traces of the missing girl are disappearing.