Mystery on a rainy night: Female reporter Su Mingli witnessed the murder of a Green Gang leader in the French Concession. The venomous scorpion tattoo on the back of the dead man's hand and the mysterious emerald finger ring hid the mystery.
Double life: On the surface, she is a newspaper daughter, but in fact she has secretly joined the underground party organization. When investigating the Shanghai black gold network, she discovered the secret connection between her father and the Youth Gang.
The drug lord emerges: Shen Mobai, the leader of the Qinglong Society, uses his identity as a tea merchant as a cover and uses the highly poisonous "Nine Chains" to control Shanghai's political and business officials. His real purpose is to monopolize Yangtze River shipping.
The bloody truth: When Mingli checked the opium smuggling records in the dock warehouse, she found that the Chamber of Commerce's inspection stamp was actually stamped on top-secret documents of the military commander...
The final showdown: At the birthday party of the general manager of the French Concession, a series of deaths caused by poison revealed the massacre of the family twenty years ago. Mingli must make a choice between family affection and justice.
