Alice has always suffered from wanderlust. She drools over travel brochures and dreams of adventure. Unfortunately, her year abroad with her identical twin sister, Tilly, grinds to a halt in Sydney because Tilly has fallen in lust. Alice has faked being Tilly before, but persuaded to step into her ridiculously high-heeled shoes on New Year's Eve, singing with the band hired to entertain heroes and celebrities aboard a luxury yacht...