A woman reports that her young daughter is missing, but there seems to be no evidence that she ever existed.

In Victorian England, the uncle of orphaned niece Flora and nephew Miles hires Miss Giddens as governess to raise the children at his estate with total independence and authority. Soon after her arrival, Miss Giddens comes to believe that the spirits of the former governess Miss Jessel and valet Peter Quint are possessing the children. Miss Giddens decides to help the children to face and exorcise the spirits.