A group of workers on a remote Scottish oil rig are due to return to the mainland when a mysterious fog enshrouds them and supernatural forces take hold.

A group of workers on a remote Scottish oil rig are due to return to the mainland when a mysterious fog enshrouds them and supernatural forces take hold.

Diana Bishop, historian and witch, accesses Ashmole 782 and knows she must solve its mysteries. She is offered help by the enigmatic Matthew Clairmont, but he's a vampire and witches should never trust vampires.