The story is about a fisherman's family living near to Shanghai. In the beginning, twin babies are born, a boy and a girl. Their growing-up is briefly sketched, and their friendship with "young master", a boy from rich family about their age.
A country girl and her boyfriend arrive in Shanghai for a better life. They soon find only desperation. She is raped and falls into prostitution as he drifts into revolutionary circles. Her access through her trade grants her greater access which she uses to aid her revolutionary lover with tragic results.
The young poet Xin Baihe flees Shanghai with his friend, Liang. Liang soon joins the resistance against the Japanese invaders, but Xin chooses to pursue a relationship with a glamorous and westernized widow in Qingdao. After hearing that Liang has been killed, Xin has a change of heart and rushes to join the war effort.
