

Plot Summary
Soon after inheriting her family's stately home, eccentric artist Fenella Harford discovers a stash of hidden diaries and enlists a young academic, Marva, to confirm their authenticity. Joined by Marva’s brilliant but overlooked mentor, Abi, the three women come together to seek the truth, soon realising that secrets at the heart of Harford Hall were darker than they could have imagined. A gripping gothic psychological thriller, The Authenticator reunites writer Winsome Pinnock ("Leave Taking") with director Miranda Cromwell ("Death of a Salesman") following their acclaimed production, "Rockets and Blue Lights".
Full Cast & Characters
Director & Crew
Miranda Cromwell
Director
Official Trailer

Where to Watch National Theatre at Home: The Authenticator Online
You can currently stream National Theatre at Home: The Authenticator online or watch it in HD via the link below.
Find National Theatre at Home: The Authenticator StreamingMovies Similar to National Theatre at Home: The Authenticator
Frequently Asked Questions
Where can I watch National Theatre at Home: The Authenticator online?
National Theatre at Home: The Authenticator (2026) is available to stream on various platforms. You can also watch it online via our Watch Online button.
What is the IMDb rating of National Theatre at Home: The Authenticator?
It has an IMDb rating of 0.0/10 based on 0 votes.
Who directed National Theatre at Home: The Authenticator?
National Theatre at Home: The Authenticator was directed by Miranda Cromwell and released in 2026.
How long is National Theatre at Home: The Authenticator?
The runtime of National Theatre at Home: The Authenticator is not available.
Movie Details
- Release Date
- 2026-06-30
- Status
- In Production








