

7.250 minSeason 1 • Episode 8
LatestMyfanwy and Farrier quickly discover how dangerous life is outside of the Checquy, while Grantchester runs out of options. Myfanwy chooses between her freedom and Farrie's life.
After waking in a park with total amnesia — and surrounded by dead bodies, all wearing latex gloves — a young woman must fight to uncover her past, and resume her position at the head of Britain’s most secret (supernatural) service before the traitors who stole her memory can finish what they started.
Acting
Emma Greenwell plays two Myfanwys — terrified AND terrifying.
Production
The Checquy headquarters drips with brutalist prestige.
Practical Effects
The Gestalt twins are genuinely unsettling body-horror adjacent.
Trivia, insights & behind the scenes
Based on Daniel O'Malley's novel, but the showrunner rewrote Myfanwy as more vulnerable and less quippy — fans of the book were DIVIDED.
The Checquy organization name comes from the French 'échiquier' meaning chessboard — fitting for a show where everyone's a pawn until they're not.