The Assembled Parties centers on the Bascovs, an Upper West Side Jewish family in 1980. In a sprawling Central Park West apartment, former movie star Julie Bascov and her sister-in-law Faye bring their families together for their traditional holiday dinner. But a house guest has joined the festivities for the first time and he unwittingly (or perhaps by design) insinuates himself into the family drama. Twenty years later, as 2001 approaches, the Bascovs’ seemingly picture-perfect life may be about to crumble.