Chan Yuet-Yue

A Kung Fu master finds out that an opium den is destroying the lives of the town he lives in, and vows to put an end to the den, but first he must try to defeat the strongest enemy he has ever faced: his addiction to the drug itself.

Mrs. Ng, who is left temporarily blind after an operation. Second day, her husband takes off to Macau for a few days. Soon afterwards, Sam, a former patient shows up, with sinister motives.