At the turn of the 19th century, Marie, the daughter of a humble artisan and his wife is born deaf and blind and unable to communicate with the world around her. Desperate to find a connection to young Marie and avoid sending her to an asylum, the Heurtins send her to the Larnay Institute in central France, where an order of Catholic nuns manage a school for deaf girls. There, the idealistic Sister Marguerite sees in Marie a unique potential, and despite her Mother Superior's skepticism, vows to bring the wild young thing out of the darkness into which she was born. Based on a true story.