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
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.