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Soon an Apple TV series starring Claire Danes & Tom Hiddleston

London, 1893. When Cora Seaborne’s controlling husband dies, she steps into her new life as a widow with as much relief as sadness. Along with her son Francis – a curious, obsessive boy – she leaves town for Essex, in the hope that
fresh air and open space will provide refuge.

On arrival, rumours reach them that the mythical Essex Serpent, once said to roam the marshes claiming lives, has returned to the coastal parish of Aldwinter. Cora, a keen amateur naturalist with no patience for superstition, is enthralled, convinced that what the local people think is a magical beast may be a yet-undiscovered species. As she sets out on its trail, she is introduced to William Ransome, Aldwinter’s vicar, who is also suspicious of the rumours, but
thinks they are a distraction from true faith.

Will and Cora strike up an intense relationship, and although they agree on absolutely nothing, they find themselves drawn together and torn apart, affecting each other in ways that surprise them both.