A group of nuns become possessed by demons and are then tortured in a dungeon of horrors during the Inquisition.

A lawyer finds out that a young couple convicted of murder was in fact framed for the crime and goes to the prison with the hope of freeing them and learns the events that happened to the two from a fellow prisoner who helped them escape.

A girl arrives from London to visit her estranged relatives in a remote castle for the reading of her father's will. After a while she discovers that they are all in fact dead and her decision to live with them turns into a nightmare. Unable to leave she's drawn into a macabre underworld through visions of nude satanic rituals and her own impending sacrifice.