A mentally unstable Vietnam War veteran works as a night-time taxi driver in New York City where the perceived decadence and sleaze feed his urge for violent action.

Passengers on a European train have been exposed to a deadly disease, and nobody will let them off the train.

Chan is Peng Tianshi, who becomes the "Card Tyrant" in response to the gambling world dominance of the Sha family. But Peng also has a Sha family member blinded in retaliation for an earlier loss, leaving the Sha family with a debt of vengeance that needs to be repaid! Sha Tong (Zong Hua) sets in motion an elaborate plan to make turn the rich and affluent Peng into a penniless former king of the gambling world! But can the "Card Tyrant" be bested?