Claire Danes plays Cora Seaborne, a recently liberated London widow who swaps corsets for fossil hammers and rents a damp cottage in Aldwinter, Essex, after 1893 newspapers report a winged leviathan stalking the Blackwater estuary. Tom Hiddleston’s Will Ransome, the village’s scripture-quoting vicar, greets her geological curiosity with guarded courtesy; together they sift marsh mud for bones while debating miracles and natural selection. The serpent remains mostly off-screen, a pretext for candlelit conversations about grief and electricity.
Director Clio Barnard shoots the marshes like a psychological map: greys and ochres swallow characters whole, while indoors oil-lamps throw amber halos that make doubt look beautiful. Composer Dustin O’Halloran’s slow piano repeats two descending notes until they feel like tide breathing. When a local girl drowns panic ignites; parishioners point at Cora’s unchaperoned boots and London manners, and Will’s sermons turn sulphurous.
See-Saw Films replaced Keira Knightley with Danes in February 2021 after pandemic-scheduling clashes; six episodes wrapped along the Essex coast later that spring. The six-hour limited series premiered on Apple TV+ 13 May 2022 and dropped weekly until 10 June, garnering BAFTA craft nominations for costume and score yet no recommission.
Production Details
Apple TV / 1 Season / 6 Episodes / 2022
Showrunner(s): Clio Barnard, Patrick Walters, Iain Canning
Writer(s): Anna Symon, Hania Elkington, Jess Brittain
Producer(s): Andrea Cornwell
Cinematography: David Raedeker
Music: Herdís Stefánsdóttir, Dustin O'Halloran
Main Cast
Claire Danes as Cora Seaborne
Tom Hiddleston as Will Ransome
Frank Dillane as Dr Luke Garrett
Clémence Poésy as Stella Ransome
Hayley Squires as Martha
Gerard Kearns as Henry Banks
Michael Jibson as Matthew Evansford
Caspar Griffiths as Frankie Seaborne
Dixie Egerickx as Jo Ransome
Ryan Reffell as John Ransome
Lily-Rose Aslandogdu as Naomi Banks
Robin Berry as Jonah
