In northern France, Juliette grows up alone with her father, Raphaël, a veteran of the First World War. Passionate about singing and music, the lonely young girl meets a magician one summer who promises that scarlet sails will one day take her away from her village. Juliette never stops believing in the prophecy. Freely inspired by the tale &quotThe Scarlet Sails&quot by Aleksandr Grin, Pietro Marcello's film blends music, history and folklore, bordering on magical realism.