Liar Game(2014)

Nam Dajong is a good student who one day is sent a mysterious paper and is invited to participate in the game of deception. It is a mental and competitive competition in which the participants must deceive each other in order to win. And whoever wins will receive a cash prize. Nam Dajong also participates in this game hoping to win and pay off his debts and debts. He loses his money in the first round of the competition, and to compensate, he gets help from the winner of the previous round, Chawoojin and Kang Doyoung, who are the masterminds of this game, to compensate for his loss...