The story revolves around the Mahjong gambling exploits of Akagi Shigeru. After a death-defying game of chicken, Akagi nonchalantly enters a Yakuza Mahjong parlor to shake the cops’ trail. Even unfamiliar with the rules of Mahjong, his gambling intuition is enough to save a small time gambler, Nangou, and grant him a seat at the gambling table. As the night progresses, the stakes are raised both for Akagi, who is under the suspicion of the local police, and within the game. However, Akagi overcomes the situation with his tactics, defiant of both life and chance. When he leaves the gambling house, no one present is in doubt of his genius.