A young 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 well-being, the governess finds her authority challenged by the children's enigmatic behavior and her own growing paranoia. The narrative unfolds through a frame story, utilizing a manuscript written by the governess that forces the reader to question the reliability of her perspective. As she attempts to protect her charges from perceived supernatural threats, the boundary between external haunting and internal psychological collapse becomes increasingly blurred.

This work remains a cornerstone of psychological horror, frequently analyzed for its deliberate ambiguity regarding the existence of ghosts. Critics and readers alike often debate whether the governess is a heroic protector or a victim of her own deteriorating mental state. The text is widely regarded for its ability to sustain high levels of tension without relying on explicit gore or conventional scares. Its enduring influence stems from the way it forces the reader to participate in the construction of the narrative truth, ensuring that the story remains open to endless re-evaluation.