For many years the dark and foreboding Margam Castle, long considered one of the most haunted buildings in the UK, has been abandoned - or so it seemed. An American research team led by Professor Annie Holzer and Doctor Daniel Barron take an interest in the Castle's macabre history of unexplained deaths and supernatural sightings. They travel to Wales to stay at the Castle, intending to conduct a series of experiments in parapsychology. But when night falls the research team's study goes awry...

A community of mutant outcasts of varying types and abilities attempts to escape the attention of a psychotic serial killer and redneck vigilantes with the help of a brooding young man who discovers them. Based on the novel "Cabal" by Clive Barker.

Doctor Channard is sent a new patient, a girl warning of the terrible creatures that have destroyed her family, Cenobites who offer the most intense sensations of pleasure and pain. But Channard has been searching for the doorway to Hell for years, and Kirsty must follow him to save her father and witness the power struggles among the newly damned.