A governess arrives at a remote country estate to care for two orphaned children, only to become convinced that the grounds are haunted by malevolent spirits. Tasked with the children's education and protection, the protagonist finds her objective complicated by the children's increasingly strange behavior and her own growing psychological instability. The narrative framework utilizes a nested structure, beginning with a frame story that introduces the governess's written account, which forces the reader to question the reliability of her observations. The physical setting of Bly serves as a claustrophobic stage where social expectations and isolation amplify the tension between the governess and the unseen forces she claims to witness.

Discussion often centers on the persistent ambiguity regarding whether the ghosts are objective realities or manifestations of the governess's repressed psyche. Readers frequently highlight the precision of the prose and the way James constructs a sense of dread through suggestion rather than explicit horror. Critics often analyze the text as a critique of Victorian social structures and the limitations placed upon women in domestic roles. The pacing is noted for its deliberate, slow-burn intensity that prioritizes internal character development over external action. Many readers find the open-ended nature of the conclusion to be a defining feature that invites repeated examination and debate.