In the Shanghai of the Republican era, Jiang Ruolin, a young lawyer just starting out, stumbles upon a “murder case” at a banquet! Forced by financial need to become a temporary “detective,” she later loses a seemingly hopeless defamation case yet emerges with her reputation intact, quickly making a name for herself. Together with Jin Kezhen, a mysterious fortune-teller, and Zheng Mulan, a wealthy young woman who has returned from abroad, she forms an alliance. In the glittering yet shadowy world of Shanghai, they fight for the dignity and rights of countless people, lighting the way through a dark and stormy night.
