1920s, England. A famous London writer and his American wife, going on vacation, by chance find themselves in a typically English outback. Their appearance coincides with a mysterious and sinister incident. A small cozy town is shaken by the death under very vague circumstances of the eldest daughter of the richest and most influential man in the county, the owner of the Lanark Gray Hall estate. Rumors attribute the “authorship” of the crime to a terrible monster from an ancient legend. But instead of quickly running away from dangerous places, visiting “tourists” decide to stay. After all, for a literary celebrity this is a chance to regain long-lost inspiration, and for his wife - to defeat personal secret demons...