In the late 18th century, two newlyweds move into the stately mansion of the Fengriffen family. The young bride is victim of terrifying visions and apparitions, threatening her very sanity. A London psychiatrist comes to her help and uncovers the terrible secret that haunts the estate.
After a young, middle-class couple moves into what seems like a typical suburban house, they become increasingly disturbed by a presence that may or may not be demonic, but is certainly the most active in the middle of the night.
Five years after an unexplained malfunction causes the death of 15 tour-goers and staff on the opening night of a Halloween haunted house tour, a documentary crew travels back to the scene of the tragedy to find out what really happened.