 Five young British nuns are invited to move to a windy "palace", former house of the concubines of an old general, in the top of a mountain in Mopu, Himalaya, to raise the convent of Saint Faith Order, a school for children and girls, and an infirmary for the local dwellers. Sister Clodagh (Deborah Kerr) is assigned as the superior sister, and her liaison with civilization is the rude government agent Mr. Dean (David Farrar). The lonely and exotic place and the presence of Mr.  Dean awake the innermost desires in the flesh of the sisters, and Sister Ruth (Kathleen Byron) becomes mad with the temptation.