When she is confined to a nursing home after a series of debilitating strokes, Ruth Tyler struggles to accept the loss of her independence. Suddenly having endless hours to sit and think, she begins to face the issues in her life she could once avoid, particularly her estrangement from her daughter, Annie. As Ruth awaits Annie's visit, she recalls the stormy relationship she had with her own mother and how profoundly it shaped her life.

Sometime Daughter illuminates the complex, sometimes troubled bonds between mothers and daughters, and explores one woman's struggle to free herself and her daughter from a legacy of pain and anger.