"Somebody Else's Daughter" tells a profound story revolving around the themes of motherhood, loss, and identity. The narrative centers on a woman who grapples with the emotional aftermath of adopting a child. Her journey is fraught with challenges as she navigates her feelings of inadequacy and the deep connections that form between her and the child, who brings both joy and sorrow into her life. The book delves into the struggles of parenting, particularly when it involves understanding a child's past and the implications it has on their future. It highlights the complexities of forming a bond with a child who has experienced trauma, and the ways in which this affects the adoptive mother’s life and self-perception.