![Cassandra](https://image.tmdb.org/t/p/w185/A4sVzcuKgTLDlLDLX77AktI6oY0.jpg)
Dr. David Marrow invites Eleanor Vance, Luke Sanderson, and Theo to the eerie and isolated Hill House to be subjects for a sleep disorder study. The unfortunate guests discover that Marrow is far more interested in the sinister mansion itself — and they soon see the true nature of its horror.