Summer is almost over when blue collar social worker Devon visits her sister Simone at the wealthy estate where she works on Martha's Vineyard. Simone is the personal assistant to the wife of a billionaire. The owners are supposed to be away, but trouble ensues when the trophy wife Michaela unexpectedly returns. The story plays out in the luxurious guest house of the estate and includes an eccentric boyfriend and a put upon servant. Unexpected depths of character emerge as wise cracking Devon, ambitious aspiring author Simone, and universally despised Michaela interact with alternately comic and touching effect!