Yvette Fielding, medium Derek Acorah and the experts visit Pengersick Castle in Cornwall, said to be haunted by the ghosts of sailors and monks, in the hope of experiencing something out of the ordinary. Pengersick Castle has a multitude of ghost, sailors in search of lost treasure, two murdered monks, a demon and cries pitiful souls that have been buried in unhallowed graves. This place has been described as frightening and evil, so much so that people don't want to spend any time here.