In the late 1920s, Gu Haitang (Qin Lan), a beautiful woman with an unfortunate life and experience, fled to Shanghai with a girl named Lingzi, struggling to survive in this mixed city. During this period, she met Yu Lifan (Zheng Jiaying), the man she had rescued. Yu graduated from the Whampoa Military Academy, and this time he arrived in Shanghai to cooperate with the workers' movement. Haitang, who lives at the bottom of society and has seen the ugliest side of human nature, relies on her courage and wisdom to deal with people with complex identities such as the local snake Huang Long (Yang Shuo), but she is like a lotus that is not stained by mud, blooming bright and bright flowers in an extremely dirty environment. Step by step, she became an important figure in Shanghai, and at the same time she never lost her kind and compassionate nature, making every effort to help the suffering people and assist Yu Lifan's revolutionary cause. In the turbulent years, Gu Haitang used her life to write a legend of an era of indomitable woman...