Catherine Sanderson and her daughter, Phoebe, have always been as close as a mother and daughter could be, except for one secret between them: the identity of Phoebe's father. Catherine, busy working with refugee and immigrant women through her small firm, Babylon Sisters, has taken on a powerful new client. She doesn't have much time for Phoebe's complicated questions of paternity - that is, until Phoebe's real father, B.J., a renowned investigative reporter, shows up in town to work on a story connected to Catherine. Now she must finally reveal the truth she's been withholding from Phoebe for eighteen years, bringing them all together in ways they never could have imagined.