Filmed entirely on location in East Hampton, Long Island, Last Summer in the Hamptons concerns a large theatrical family spending the last weekend of their summer together at the decades-old family retreat which economic circumstances have finally forced them to put on the market. Victoria Foyt plays a young Hollywood actress whose visit wreaks havoc on this stellar group of family and friends—led by matriarch Viveca Lindfors and made up of an extraordinary mix of prominent New York actors, directors and playwrights. In the course of a very unusual weekend, comic as well as serious situations arise, and the family’s secrets—of which there are many—begin to unravel.