A group of friends finds themselves stranded in an old hotel in Thailand. As they uncover the history beneath the walls, they're slowly drawn into its sinister past, making it even harder to get out alive.

Gi, who wants to start up her business in Fu Gui Mall, needs to learn to play Taiwan mahjong to be part of the tenants there. All the other tenants teach her the techniques of the game but Fu Ho defeats Gi. However, he is impressed with her determination and rents a place to Gi. Meanwhile, Fu Ho's son, Sun Gui, returns to Hong Kong and is planning to take over the mall. He finds four mahjong experts to gamble with the tenants. Gi, Sam, Lam and the others lose their money and means of survival. Luckily, Lam finds

When the Ronin Gang robs an armored car, three cops — Chan, Fong and Wai — go on the warpath. Each has a personal interest in bringing down Ronin leader Tien: he killed Chan's fiancée, humiliated Fong and kidnapped Wai's brother.