Following the death of her father, Alice (Ruth Wilson) returns to her home village for the first time in 15 years, to claim the tenancy to the family farm she believes is rightfully hers.

When the plots of reclusive author Elly Conway's fictional espionage novels begin to mirror the covert actions of a real-life spy organization, quiet evenings at home become a thing of the past. Accompanied by her cat Alfie and Aiden, a cat-allergic spy, Elly races across the world to stay one step ahead of the killers as the line between Conway's fictional world and her real one begins to blur.