Jody Horowitz grew up in an upscale community outside Boston with her narcissistic mother, her passive father, and her snooty older sister. Breaking any of Mother's multiple rules meant enduring verbal lashings and comparisons to her "perfect" sister. Jody acquiesces in practice, if not in spirit, starting with Rule # 1: Marry a Well-Off Jewish Man. Have his baby. Which she does. But Jody, now 33, with a one-year-old daughter, learns that her "well-off-enough...