A young solicitor is sent to a remote, isolated estate to settle the affairs of a deceased client, only to encounter a vengeful supernatural presence. Arthur Kipps, a junior solicitor, travels to the desolate Eel Marsh House to organize the papers of the late Alice Drablow. He finds himself isolated by the tide and the surrounding marshes, facing a malevolent entity that haunts the local community. The narrative is presented as a retrospective account, detailing his descent into terror as he uncovers the history of the house and the tragic figure bound to it.

Readers and critics frequently highlight the effectiveness of the book's atmosphere, noting how the author builds dread through the physical environment rather than overt violence. Discussion often centers on the classic structure of the ghost story and how it pays homage to traditional gothic literature. The pacing is described as deliberate and methodical, allowing the tension to accumulate steadily until the final revelation. Many observers appreciate the restraint shown in the writing, which emphasizes the psychological toll on the protagonist over sensationalist scares. The work is widely regarded as a standard for the genre due to its focus on mood and the lingering nature of past tragedies.