A domineering family matriarch insists that her three adult children return home for the holidays, but discovers that sometimes estranged siblings are best left separated as anger and resentment in the family surges to an all-time high. Fanny is developmentally disabled, and approaching her 40th birthday. Her younger sister Annie has cared for her since they were both children, but she gets a break when Fanny moves into a group home, gets a job, and achieves a certain level of independence. When the candy factory where Fanny works goes out of business, however, it starts to look as if Annie's obligation to care for her big sister are far from over. Meanwhile, their brother Danny has somehow managed to avoid all family responsibilities for years. But when Fanny, Annie, and Danny's mother lets them all know that she expects to have an old-fashioned family dinner for the holidays, it's only a matter of time before deep-rooted resentments start to crack the surface of their carefully maintained facades.