"Leaving was my sister's choice. I would have to make my own. All Harriet Szász has ever known is life onstage with her sister, Josie. As "The Sisters Sweet," they pose as conjoined twins in a vaudeville act conceived of by their ambitious parents, who were once themselves theatrical stars. But after Josie exposes the family's fraud and runs away to Hollywood, Harriet must learn to live out of the spotlight--and her sister's shadow. As Josie's star...