Wanting to help his girlfriend write her thesis, Paul Seaton begins to collect material about the photographer Pandora Gibson-Gore. The diary of this mysterious woman falls into his hands, in which she talks about the extravagant and fabulously wealthy tycoon Fisher and his guests who conducted black magic sessions and performed ritual sacrifices. Seaton visits Fisher's sinister house, hoping to find the photographs hidden by Pandora, and barely survives. He loses everything: love, work, loved ones - and finds himself involved in a chain of strange and terrible events. The ghosts of Fischer's house won't let him go. Trying to deal with the sinister forces that destroyed his life, Paul Seaton plunges even deeper into the mystical events of half a century ago...