Oil heiress Leonie Frothingham whiles away a summer at her seaside cottage, where cocktails flow with the tides, and lovers come and go like mosquitoes. Her estranged husband Sam and her daughter Paula humor Leonie's flirtations as matter-of-course for the ultra-wealthy floating above the conventional rules of the world. While the Great Depression ravages most of the country, Leonie's idyllic retreat is not wholly protected from the quakes of the era. Paula and her idealistic fiancé cultivate youthful, misgivings about Capitalism and its beneficiaries. Leonie's latest flame, the psychoanalyst Kenneth Rice, insinuates himself into each relationship and psyche with a pretense of objectivity that gets him everything and everyone he wants. With penetrating insights, all in the course of one beautiful season, End of Summer exposes the forces that build fortunes, tear apart families, and buttress the American society of haves, have-nots, and the revolution waiting in the wings.