John Riley's Daughter opens in a small South Carolina town in the early 1970s with the disappearance of Memphis Riley's 29-year-old mentally handicapped aunt, Clover. Memphis and Clover have never gotten along, which is just one of the things Memphis's grandmother will never forgive her for. Six years ago Memphis's folksinging father, John Riley, dropped her off at her grandmother's house temporarily after her mother died; he hasn't been back since...