Londense weduwe Cora Seaborn verhuist naar Essex om meer te weten te komen over een mythisch zeemonster. Ze vormt een onverwachte band met de dorpspastoor op basis van wetenschap en scepticisme, maar na een tragische gebeurtenis zijn de dorpelingen bang dat zij het wezen heeft aangetrokken.
 | Seizoen 1 Aflevering 1 The Blackwater Datum: 2022-05-13 Lengte: 50 min |
 | Seizoen 1 Aflevering 2 Matters of the Heart Datum: 2022-05-13 Lengte: 50 min |
 | Seizoen 1 Aflevering 3 Falling Datum: 2022-05-20 Lengte: 42 min |
 | Seizoen 1 Aflevering 4 Everything Is Blue Datum: 2022-05-27 Lengte: 49 min |
 | Seizoen 1 Aflevering 5 I Break Things Datum: 2022-06-03 Lengte: 47 min |
 | Seizoen 1 Aflevering 6 Surfacing Datum: 2022-06-10 Lengte: 51 min |
| Production | Jamie Laurenson | Executive Producer |
| Production | Hakan Kousetta | Executive Producer |
| Production | Iain Canning | Executive Producer |
| Production | Andrea Cornwell | Producer |
| Production | Emile Sherman | Executive Producer |
| Production | Patrick Walters | Executive Producer |
| Production | Anna Symon | Executive Producer |
| Production | Clio Barnard | Executive Producer |
| Writing | Sarah Perry | Novel |
| Art | Alice Normington | Production Design |
| Art | Thalia Ecclestone | Art Direction |
| Editing | Lucia Zucchetti | Editor |
| Writing | Anna Symon | Adaptation |
| Art | Lucy Eyre | Set Decoration |
| Costume & Make-Up | Jane Petrie | Costume Design |
| Production | Shaheen Baig | Casting |
| Camera | David Raedeker | Director of Photography |
| Production | IfeOluwa Taiwo | Production Assistant |
| Sound | Dustin O'Halloran | Original Music Composer |
| Sound | Herdís Stefánsdóttir | Original Music Composer |
| Sound | Tim Barker | Sound Supervisor |
| Costume & Make-Up | Laura Schiavo | Hair Designer |
| Production | Cecily Barber | Production Manager |
| Directing | Malcolm Davies | First Assistant Director |
| Production | Harriet Lawrence | Other |
| Directing | Lola Dauda | Script Supervisor |
| Production | Zorana Piggott | Other |
| Production | Karl Liegis | Co-Producer |
| Costume & Make-Up | Laura Schiavo | Makeup Designer |
| Production | Hannah Jennings | Production Coordinator |
| Production | Dagmara Plazewska | Travel Coordinator |
| Production | Ellen Spence | Production Secretary |
| Production | Francesca Castelbuono | Production Secretary |
| Crew | Maryllis Gonzalez | Other |
| Production | Jack Gillespie | Assistant Production Coordinator |
| Production | Georgette Mason | Production Assistant |
| Production | Nicky Earnshaw | Co-Producer |
| Crew | Nicol Shaw | Transportation Coordinator |
| Lighting | Sol Saihati | Gaffer |
