Sergeant Jackie O'Hara arrives on the remote Isle of Toll Mòr to follow up an emergency call from local farmer Frank Guthrie. As the weather worsens and she makes her way inland, nothing can prepare her for what she's about to witness.
The Harrowing is written by Mark Healy and stars Joanne Froggatt as Sergeant Jackie O'Hara. Episode 1 also features:
The Stranger - Stewart Scudamore
Father McKenna - Alec Newman
Inspector Carey - Rosalind Eleazar
Mr Pryor - Adam James
Police Constable - Scarlett Maltman
Maggie Webb - Hilary Maclean
Paul Rutherford - Blair Kincaid
Micky Brodsky - Tom Crowley
Ewan MacFarlane - Jamie Michie
Alan Forbes - Stuart Martin
Other roles were played by the cast
Sound design is by Rich Evans and photography by Helen Murray. The executive producers are Robert Delamere and Sarah Doole and the series is produced by Ben Walker for Storyglass.