It's just after Labor Day, and Martha's Vineyard has started emptying out, but you can still smell the suntan lotion (the expensive kind).
And the expensive life is just what Simone is living these days, as personal assistant to Michaela Kell, trophy wife of an absurdly rich (and often absent) New York ad man.
When Simone's older sister, a social worker from blue collar Buffalo, comes to visit, lifestyles-and worlds-collide.