Kit Harington has landed his next role in new movie Mary's Monster, which will explore Mary Shelley's mental struggle to write Frankenstein.

The Game of Thrones and Eternals star will feature as the manifestation of the Monster in the author's mind, with The Rising's Clara Rugaard playing the part of Shelley.

Also set to star are CODA's Ferdia Walsh-Peelo as the writer's husband Percy Bysshe Shelley and Normal People's Sebastian De Souza as Lord Byron.

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A Discovery of Witches' Farren Blackburn directs from a script by Deborah Baxtrom and Stephen Hallett.

Described as "couture fashion meets gothic horror", Mary's Monster will include "contemporary music, spoken word, sex, drugs and Baroque n Roll" as it looks at the 19th-century world through a contemporary lens.

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The synopsis reads: "Terrified of giving voice to her own dark, transgressive thoughts yet at the same time driven creatively by them, Mary is seduced by her own inner monster catapulting her into a dangerous, destructive psychological romance the likes of which has never been seen before.

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"Realising the monster is inextricably linked to her own mental state, feeding off her own emotions, Mary's only route to salvation is in bringing him to life. To survive, to heal, to finally be heard, her voice must become… monstrous."

Harington – who famously played Jon Snow on Thrones – said: "Mary's Monster is a brilliantly original and fascinating script and I'm relishing the idea of depicting the unique part of The Monster. An embodiment of Mary Shelley's psyche. I'm excited by Farren's vision and passion for the project."

Mary's Monster is set to begin filming this August.

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Sam is a freelance reporter and sub-editor who has a particular interest in movies, TV and music. After completing a journalism Masters at City University, London, Sam joined Digital Spy as a reporter, and has also freelanced for publications such as NME and Screen International.  Sam, who also has a degree in Film, can wax lyrical about everything from Lord of the Rings to Love Is Blind, and is equally in his element crossing every 't' and dotting every 'i' as a sub-editor.