After their decision not to have a biological child, Sarah Sentilles and her husband, Eric, decide to adopt via the foster care system. Despite knowing that the system’s goal is the child’s reunification with the birth family, Sarah opens their home to a flurry of social workers who question them, evaluate them, and ultimately prepare them to welcome a child into their lives. After years of starts and stops, and endless navigation of the complexities and injustices of the foster care system, a phone call finally comes: a three-day-old baby girl named Coco, in immediate need of a foster family. A love letter to Coco and to the countless children like her, STRANGER CARE chronicles Sarah’s discovery of what it means to mother --- in this case, not just a vulnerable infant but the birth mother who loves her, too.