The Fitzgeralds find that you can't go home again... but at Christmas, you have to, as 5 grown children, their significant others, children and assorted others invade the home of Peg and Seamus Fitzgerald for one long Christmas weekend.
Flashbacks chronicle the O'Brien family from the 1960s when they reign as Suffield's ideal family, through the 1990s when elderly matriarch Ginnie lives in seclusion with her gay son, Mark.