8 contestants compete for 10 billion wons ($1 Million USD) in a survival reality TV show. The challengers must spend 7 days in the Australian desert. On the second day, one contestant is found dead. The other contestants then find themselves in horrifying situations as they deal with each others' lies and deceits.
Hyeon-su (Park Yong-ha), an unemployed, self-taught individual investor, hits the jackpot ― though at the cost of disrupting a scam by gangster-turned-financier Hwang (Park Heui-soon). Hwang, however, recognizes Hyeon-su's talent and recruits him for his team of scam artists. They prepare for a 60 billion won heist, but a bigger scam is in the making within the group.
Ji-yeon is a successful lawyer and single mother to a seven-year-old girl. On her daughter’s field day, Ji-yeon competes with other parents in a running race and almost comes in the first place. However, nowhere could she find the girl who’s been watching and rooting for her mother to win. Later that day, Ji-yeon’s receives a phone call from an anonymous man, who tells her he has her daughter in custody and proposes a deal. To see her daughter alive, Ji-yeon needs to prove a convicted murderer not guilty on his second trial, only within a week. Ji-yeon tries to convince herself the murderer should be innocent, but the encounter with the victim’s mother makes her understand what drove crime-to-crime.