España, años 50. Francisco es un joven que intenta proteger a su hermana Isabel de su padre, que es incapaz de superar la muerte de su esposa y culpa a su hija por ello, encerrándola en el cuarto oscuro.
Todo cambia cuando María entra ...
Francisco is a young man who tries to protect his sister Isabel from his father, who is unable to overcome the death of his wife and blames his daughter for it, locking her in the dark room. Everything changes when Maria enters their lives...