In 1910, Hong Kong members of a secret Tong crime syndicate protect their identities by murdering the daughter of a British sea captain who vows revenge.
A secret society of Hong-Kong at the beginning of the century called "The Red Dragon Tong" kidnaps the captain of a ship in the harbour of Hong-Kong as he tries to detain the killers of his daughter. Because the secret society is very powerful it is not easy to free him from their hands.—Volker Boehm