Jennifer Connelly stars as Virginia, a charming yet mentally ill mother whose greatest love is her protector and illegitimate son, Emmett (Harrison Gilbertson). Richard Tipton (Ed Harris), the local married Mormon sheriff, who is running for public office, might very well be Emmett's father. This boardwalk town's peculiar secrets are threatened when Virginia's son begins a romantic relationship with Tipton's daughter (Emma Roberts) sending mother and son on a mad dash to seize their own brand of the American Dream – guns blazing.