Xia Zhenglan is a young beautiful ballerina, and bride. On her wedding night, her husband dies oddly which causes her to become mentally deranged. The police become suspicious of her actions which forces her to be drawn into the fight for her life.

A Xiang, a country girl working at Dafeng cotton mill, purchases a red dress, in fashion on the streets of Shanghai. One day, she lends it to Xing'er, a model worker, and causes a drastic shift in her personality.