Screenplay of Blind Faith

Sophia lives the ideal life as far as the upper crust that bred her is concerned. She has prestige, admiration, influence, luxury, the finest education, exquisite taste, charisma, a handsome distinguished husband; anyone asked would say that Sophia and Peter Percival III are the perfect couple. Sophia has life by the tail. So why isn't she deliriously happy? What could Sophia possibly want?