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 summertogether at the decades-old family retreat which economic circumstances have forced them to put on the market. Victoria Foyt plays a young Hollywood actress whosevisit wreaks havoc on the 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.