Shortly after World War I, veteran Raphaël returns home from the frontlines to find himself a widower, and father to an infant daughter. Raised by her father in rural Normandy, the child Juliette grows into a lonely young woman who dreams of greater possibilities. She seeks refuge in the nearby woods, where she meets a witch who promises scarlet sails will one day take her away from her village. Reckoning with her future and swept away by a rakish...