Sisters Gert and Marigold Brewer arrive in Dead Horse Gap, on the run from some sketchy criminal business in Sydney but full of hope for a bright and prosperous future. They track down an old friend, Fran, who has reinvented herself as a cultured French woman to nab her uber wealthy husband, Percy. But when Fran pretends not to know them, the sisters must come up with a cunning plan to find shelter for the night.