As the deceased soul Ja-hong and his three afterlife guardians prepare for their remaining trials for reincarnation, the guardians soon come face to face with the truth of their tragic time on Earth 1,000 years earlier.
Four middle school students, who are the members of a photography club receive an old-fashioned analog camera from their teacher. The teacher asks them to take pictures of 'the end of the world' during summer vacation. While they discuss where would be the end of the world, as one of the girls suggests, they just get on the subway to go to the very last station.
Pastor Park, the head of a religious investigation center that exposes cults and cult leaders, begins looking into a suspicious new religion called Deer Mount.
