Kaiji Ito moves to Japan after graduating from high school. Unable to find a job and frustrated with society at large, Kaiji spends his days gambling, vandalizing cars, and drinking booze. Two years later and his life is no better. A debt collector named Endo arrives to collect money owed. The debt collector offers two choices to Kaiji: spend 10 years paying off his loan or board a gambling boat for one night to repay his debt & possibly make a boat load of money. Could the debt collector Endo actually be setting up Kaiji? One way or another, for Kaiji it's going to be the night of his life.
In Liar game: Final Stage, Players are encouraged to trust each other to win the tournament. However, a mysterious player named X is secretly plotting to sabotage everyone of their chances to win the LGT.
3 years after the ultimate life-or-death game with Teiai Group, Kaiji was entrapped by Teiai and again back in the underground, forced to do hard labour. One day, Kaiji wins a bet to get out of the underground with 1 million yen, and promises the other workers that he will save them. But to do so, he only has 14 days and needs 200 million yen! Kaiji meets his former rival Tonegawa and learns that there is a chance to turn the tables in the game. It was a monster casino machine that will make 1 billion yen if you win...
To exact revenge, the Liar Game office is revived. The target is only one person: Shin'ichi Akiyama. Because of new heroine Shinomiya, Shin'ichi, who kept refusing to take part in the game, finds himself in the game. Along with Akiyama, there's 19 other players competing for the prize of two billion yen. Omega, who revived the game, plays the game at the Liar Game office with Alice. Alice sets up the game, chooses the players, and sets the traps.
Kaiji (played by Tatsuya Fujiwara) is about to have his life changed. The thrill is beyond anything he, or most people, have experienced. The adventure is not without risk and danger however. He is given four games, which are challenges, and include life and death situations. The film follows its prequels and things will get both mental and physical.