Juliette and Carmen, two intrepid sisters aged 4 and 8, discover a secret passage in The Kingdom of Draughts, their favourite book. Transformed into cats and separated from each other, they will have to prove their fearlessness and courage to find each other again. With the help of the singer Selma, they will try to return to the real world by fighting Sirocco, the master of winds and storms? But is it as terrifying as they imagine?