'Didi (actually named Eurydice) is miserable and unsettled because her father's work has forced her to leave her friends and school in Sydney. Jamie, older sister Kate's boyfriend, is also unsettled because of his parents' divorce and his recent move to Melbourne. Kate resents Jamie's absorption in music and his need to earn money.
'While Didi and Jamie happen to be watching an old film, On our Selection, they are inexplicably transported back to 1933. Though initially terrified, Jamie and Didi are quickly befriended by the lively argumentative Sam and his fiancee Selma and taken into the Finkelsteins' welcoming boarding house.
'Once the shock of finding themselves in a totally strange environment wears off, Didi and Jamie decide to make the most of their unusual circumstances. They don't even like each other, and now they must learn to live together. Against a backdrop of Depression Melbourne, early European migration and the excitement of Wirth's Circus on the site of the present Victorian Arts Centre, they must find a way home or stay in 1933 forever.
'Why does all this happen? Important clues are the trunkful of old clothes Didi finds in the cellar and Jamie's harmonica'. Source: author's website.