Synopsis：Engaged couple Hyesun and Jungho join the reality game show “Love Money Mafia,” where they live in a strange house with four other couples and play one mafia-style couple game every day for a week to win 1 billion won. As the games continue, Hyesun begins to suspect that Jungho is hiding something. When she witnesses his shocking betrayal, she realizes her life is in danger and must fight to escape his threat and survive. Will she make it out of this deadly game alive?