A queasy look at money, sex, and motherhood with protagonists that will fascinate some readers and exhaust others. Estranged wives, both named Rebecca, become involved with the same woman in this sophomore novel. The Rebeccas—one a doctoral student, the other a cashier at an organic grocery store—have been separated for six months. Theirs was a volatile marriage, marred by student Rebecca’s alcoholism, but now she is sober, on her medication, and eager to become a foster parent.