Overview
The Attic Expeditions (also known as Horror in the Attic) is a 2001 horror film directed by Jeremy Kasten and starring Andras Jones and Seth Green, with appearances by Alice Cooper and Ted Raimi.
Plot
Note: The story is explained here in its chronological order, rather than the way it unfolds in the film.
Trevor and Faith are a happy couple who decide to buy a home together. After purchasing their new house, Trevor is cleaning the attic and discovers a chest. In the chest there is a staircase, under which he finds a book of black magic that only he can read. He begins studying the book, and starts to perform rituals with Faith. In an effort to gain even greater power, he and Faith perform a ritual in an attempt to merge their two consciousnesses. The ritual goes wrong, and Faith suffers a violent death. Trevor calls the police.
Years later, Trevor appears in a hospital. Apparently having been found insane, he is now under the care of Dr. Ek. The doctor has learned about the book Trevor found, and wants to use it for his own means - one of which, he later admits, is to cure all mental illness. It is around this time that Dr. Coffee comes to stay at the sanitarium and study under Dr. Ek. Trevor seems to have forgotten much of his past including practicing black magic and killing Faith. Dr. Ek talks with Trevor, trying to help him regain any previous memories about where Trevor may have hidden the book. At first Ek is very coy about his intentions. He worries that if Trevor knows the value of the book and his intent, he won't willingly surrender it.
From Wikipedia (CC BY-SA 4.0).