H.P. Lovecraft's The Dunwich Horror and Other Stories

The devil’s spawn is about to open the gates of hell

In Louisiana, in the wicked Whateley House, Lavina delivers two babies whose fate is written. Ten years later, three scholars of the occult discover that one page of the “Necronomicon,” the unspeakable book, is missing and the Black Brotherhood has summoned the ancient gate keeper to free legions of evil gods and monsters from the dimension of chaos.