Hill House is a mansion in a location never specified, surrounded by hills. Dr. John Montague, an investigator of the
supernatural, has rented Hill House for a summer and has invited as his guests several people chosen because of their experiences with
paranormal events. Of these, only two accept: Eleanor Vance, a shy young woman who resents caring for her demanding, disabled mother and Theodora, a
bohemian artist. Both are to join Montague at Hill House, along with Luke Sanderson, the young heir to the estate, where Montague hopes to find scientific evidence of the existence of the supernatural. Eleanor travels to the house, where she and Theodora will live in isolation with Montague and Luke. The house's two caretakers, Mr. and Mrs. Dudley, refuse to stay near the house at night. The four overnight visitors begin to form friendships as Montague explains the building's history, which encompasses suicide and other violent deaths. All four of the inhabitants begin to experience strange events while in the house, including unexplained noises and
spirits roaming the halls at night, strange writing on the walls, and other unexplained events. Eleanor tends to experience phenomena to which the others are oblivious. At the same time, it is implied that at least some of what Eleanor witnesses may be a product of her imagination. Another implied possibility is that Eleanor possesses a subconscious
telekinetic ability that is itself the cause of many of the disturbances experienced by her and the others. This possibility is suggested especially by references early in the novel to Eleanor's childhood memories about episodes of a
poltergeist-like entity that seemed to target her home. Later in their stay, the doctor's wife, the haughty Mrs. Montague, and her companion Arthur Parker, the headmaster of a boys' school, arrive to spend a weekend at Hill House and help investigate it. They, too, are interested in the supernatural, including
séances and
spirit writing. Unlike the other four characters, they do not experience anything supernatural, although some of Mrs. Montague's alleged spirit writings seem to communicate with Eleanor. Much of the supernatural phenomena that occur are described only vaguely, or else are partly hidden from the characters themselves. One night, Eleanor and Theodora are in a bedroom when an unseen force tries to open the door, and Eleanor believes after the fact that the hand she was holding in the darkness was not Theodora's. Later, as Theodora and Eleanor walk outside Hill House at night, they see a phantom family picnic that seems to be taking place in daylight. Theodora screams in fear for Eleanor to run, warning her not to look back, though the book never explains what Theodora sees, but she babbles, laughs, and cries in fright. The others eventually come to believe Eleanor is the cause of the disturbances. Fearing for her safety, Montague and Luke declare that she must leave. Eleanor, however, now regards the house as her home and resists. Montague and Luke force her into her car; she bids them farewell and drives off, but before leaving the grounds of Hill House, she propels the car into a large oak tree to her implied death. ==Reception and legacy==