"Good Sisters" by Sinéad Moriarty tells the story of three sisters, Louise, Julie, and Sophie, who are navigating life's challenges after the loss of their mother. Each sister faces unique difficulties: Louise's daughter wants to meet her father, Julie's family life is overwhelming, and Sophie tries to protect her daughter from the pitfalls of teenage life. The sisters must rely on each other, but being a "good sister" proves to be harder than it seems.