A team of American parapsychologists travel to Wales to conduct a study of Margam Castle, one of the UK's most haunted buildings. The film was directed by Andrew Jones.

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 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 and they're forced to fight for their lives when they incur the wrath of the vengeful spirits who live within the walls of Margam Castle .

Derren Nesbitt ... Hugh Morgan

Jane Merrow ... Edith Withers

Caroline Munro ... Brenda

Garrick Hagon ... Dean Michaels

Vernon Dobtcheff ... Enos

Amy Quick ... Annie Holzer

Ashton Spear ... Daniel Barron

Lance C. Fuller ... Kirk Dolton

Jason Farries ... Brent Cooper

Jordan Holland ... Lydia Albright

Mads Koudal ... Robert Scott

Sara Dee ... The Bride

Judy Matheson ... Agatha

Simon Bamford ... The Witchfinder General

Rest of cast listed alphabetically:

Fern Leigh Albert ... Ganzfeld Experiment Volunteer #2

David Bridle... Ganzfeld Experiment Volunteer #1

Lee Cutler ... Stern (as Lee Williams)

Rachel Hopkins ... The Lady in the Lake

Saffia Larter-Green ... The Child

Derek Nelson ... Kenny

David Pain... Joseph Lewis

Brian Smith... The Father

Amelie Willis ... Abigail