Episode 3: Episode 3
Release Date
Jan 15, 2026
Genre
Mystery, Thriller
Network
Netflix
Language
British English
Episode Summary
In this exciting mystery, a sleepover at a grand mansion turns deadly when a guest vanishes overnight. Clever detectives unravel secret codes, hidden passageways, and seven suspicious strangers. With puzzles and surprises, young viewers will love guessing whodunit as the team races to unmask a clever thief before they disappear again!
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Cast & Crew
Agatha Christie's Seven Dials S1E3:
Mia McKenna-Bruce
Actor
Helena Bonham Carter
Actor
Martin Freeman
Actor
Alex Macqueen
Actor
Guy Siner
Actor
Chris Chibnall
Writer
Chris Sweeney
Executive Producer
Suzanne Mackie
Executive Producer
Agatha Christie
Writer
Chris Sussman
Executive Producer
James Prichard
Executive Producer
Andy Stebbing
Executive Producer