Qin Nianwei and Lu Yanshen were espionage partners and secret lovers, bound by an intense physical attraction. When Qin Nianwei became pregnant, Lu Yanshen coldly demanded she terminate the pregnancy and confessed that he already had a son with her protégée, Ren Jiaojiao. Devastated, Qin Nianwei resolved to divorce him.
On her deathbed, her mother had left her four silk pouches, each containing a warning: Don't study medicine. Don't stay in the country. Don't marry your partner. And don't divorce. The first three had all come true—now Qin Nianwei was determined to defy the fourth and go through with the divorce. But Lu Yanshen refused to let her go. He even conspired with Ren Jiaojiao: during a kidnapping, they forcibly drugged Qin Nianwei and used her as a hostage to trade for a child.
In her moment of peril, Xiao Wenhe—head of the Chamber of Commerce and Lu Yanshen's sworn enemy—came to her rescue. Once adversaries, Qin Nianwei and Xiao Wenhe gradually fell for each other. In him, she found a respect and
