A once-in-a-century storm hits the remote Scottish Island of Toll Mòr. As the isolated community take shelter, a barbaric crime sets off a chain of events which threatens to change the course of history. A mysterious stranger, arrested near the crime scene, refuses to give his name and repeatedly warns of the rise of an ancient evil. This trailer features Stewart Scudamore. The Harrowing is an 8-part supernatural thriller is created by acclaimed writer and director Mark Healy and produced by Storyglass.   See acast.com/privacy for privacy and opt-out information.