The House of the Devil is a 2009 American horror film written, directed, and edited by Ti West, starring Jocelin Donahue, Tom Noonan, Mary Woronov, Greta Gerwig, A. J. Bowen, and Dee Wallace.
The plot concerns a young college student who is hired as a babysitter at an isolated house and is soon caught up in bizarre and dangerous events as she fights for her life.
The film combines elements of both the slasher film and haunted house subgenres while using the "satanic panic" of the 1980s as a central plot element. The film pays homage to horror films of the 1970s and 1980s, recreating the style of films of that era using filming techniques and similar technology to what was used then. The film's opening text claims that it is based upon true events, a technique used in some horror films, such as The Amityville Horror and The Texas Chain Saw Massacre.
Self-proclaimed redneck film critic Joe Bob Briggs has praised the film as "just a superb slow-burn, extremely well-crafted movie."