With their municipality scheduled to be flooded to make way for the construction of a new dam, the devout denizens of a rural village have placed their faith in Choi Gyeong-seok, a church elder who promises to relocate the flock. Choi tells the villagers they will build a church and a new housing development where they will all be able to live together after the town is completely submerged. He also says that only 144,000 people can go to heaven, and that church offerings are mandatory if one wants to "secure their spot." Even the town's much-revered Reverend Sung, a young and good-looking minister who seemingly has the ability to heal the sick, approves of Choi's plans. Behind his guise of devotion, however, Choi is a practiced con man posing as a representative of a fake religion; his true aim is to defraud the villagers of their resettlement compensation. The only obstacle to the scheme is Kim Min-chul, a skeptical outcast who accidentally discovers evidence of Choi's past misdeeds and suddenly finds himself becoming the center of resistance against the church institution.