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 and a girl is found wandering the hills, lost and bewildered.

This trailer features Sorcha Groundsell. The Harrowing is an 8-part supernatural thriller is created by acclaimed writer and director Mark Healy and produced by Storyglass.

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