The Black Sleep
“The Terror Drug That Wakes the Dead!”
We checked 8 streaming services in India on 05 Jun 2026 at 09:44 IST
About
In 19th century England, a noted brain surgeon rescues a former student from being hanged on a false conviction for murder, and spirits him away to an ancient, repurposed abbey far in the countryside. There, he connives his pupil into assisting him in mapping the functions of the various parts of the human brain, using living subjects who are under a terrible animation-suspending drug called "black sleep". Subsequently, the student, along with the daughter of one of the subjects, discover that most of these subjects have survived but are being kept in a dungeon-like cellar, in various stages of physical and mental derangement...
Cast
Basil Rathbone
as Sir Joel Cadman
Herbert Rudley
as Dr. Gordon Ramsay
Patricia Blair
as Laurie Munroe
Akim Tamiroff
as Odo the Gypsy
Phyllis Stanley
as Daphne
Lon Chaney Jr.
as Dr. Munroe, aka Mungo
Bela Lugosi
as Casimir
John Carradine
as Bohemund
George Sawaya
as Sailor-Subject
Tor Johnson
as Mr. Curry
Sally Yarnell
as Female Subject
Peter Gordon
as Sgt. Steele
Claire Carleton
as Carmona Daly
Clive Morgan
as Roundsman Blevins (uncredited)
Louanna Gardner
as Angelina Cadman
Aubrey Schenck
as Prison Coroner's Clerk (uncredited)
John Sheffield
as Det. Redford (uncredited)
Where does The Black Sleep rank today?
The Black Sleep is #10000 on the CineFlixo Daily Streaming Charts today.
- Highest: #10000
- Top 10: 0 days
- Top 100: 0 days
Watch The Black Sleep Online Free in HD
Looking for a place to watch The Black Sleep online for free? You've landed on the right page. The Black Sleep is a popular Inglés horror and science fiction movie from 1956 that you can stream right now on CineFlixo in high quality, no signup required.
About The Black Sleep
“The Terror Drug That Wakes the Dead!”
In 19th century England, a noted brain surgeon rescues a former student from being hanged on a false conviction for murder, and spirits him away to an ancient, repurposed abbey far in the countryside. There, he connives his pupil into assisting him in mapping the functions of the various parts of the human brain, using living subjects who are under a terrible animation-suspending drug called "black sleep". Subsequently, the student, along with the daughter of one of the subjects, discover that most of these subjects have survived but are being kept in a dungeon-like cellar, in various stages of physical and mental derangement... Running 82 minutes.
The Black Sleep Cast and Characters
The cast features Basil Rathbone (as Sir Joel Cadman), Herbert Rudley (as Dr. Gordon Ramsay), Patricia Blair (as Laurie Munroe), Akim Tamiroff (as Odo the Gypsy), and Phyllis Stanley (as Daphne). Their performances are a major reason The Black Sleep has built such a passionate audience.
Where to Watch The Black Sleep Online
CineFlixo lets you stream The Black Sleep online free, instantly, in HD. There's nothing to install — open the page, hit play, done. Works perfectly on Jio, Airtel, Vi networks across India and on slow mobile data thanks to our adaptive video pipeline.
▶ Watch The Black Sleep NowWhy People Are Watching The Black Sleep
The Black Sleep flies under the radar but it deserves your attention. What makes it work is world-building that respects the audience's intelligence. If you enjoy Inglés storytelling that doesn't follow the same tired beats, this is the kind of film you'll end up recommending to friends.
Frequently Asked Questions about The Black Sleep
Where can I watch The Black Sleep online for free?
You can watch The Black Sleep online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How long is The Black Sleep?
The Black Sleep runs for 82 minutes (about 1.4 hour).
Is The Black Sleep good? What's the rating?
The Black Sleep holds a 6.2/10 rating based on 45 reviews — a solid pick if the genre interests you.
Who is in the cast of The Black Sleep?
The main cast includes Basil Rathbone, Herbert Rudley, Patricia Blair, and Akim Tamiroff, plus a strong supporting ensemble.
Is The Black Sleep available in Inglés?
Yes — The Black Sleep was originally produced in Inglés and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was The Black Sleep released?
The Black Sleep was released in 1956.
Do I need an account to watch The Black Sleep on CineFlixo?
No. CineFlixo is free and you can watch The Black Sleep without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Movies You Might Like
If you enjoyed The Black Sleep, check out Murrain, Mimic, Valley of the Dead, The Fly, and The Man with Two Brains.
💬 Comments0
Join the conversation
Share your thoughts, rate episodes, and connect with other fans
Hey everyone! 👋 Welcome to the discussion.
Feel free to share your thoughts about this series — what did you love, what surprised you, which episodes are your favorites? 🎬
Got ideas for what we should add to CineFlixo? Want to suggest a series? Drop it here! We read every comment ✨
Similar Movies
Movies like this one
Recommended for You
Based on this movie
Similar English Movies
More horror English movies you might enjoy
Frequently Asked Questions
Common questions about The Black Sleep
Where can I watch The Black Sleep for free?
You can watch The Black Sleep (1956) online for free on CineFlixo. Just click "Watch Free" on this page to start streaming instantly — no account, subscription, or downloads required.
What is The Black Sleep about?
The Black Sleep is a Horror/Science Fiction English-language film. In 19th century England, a noted brain surgeon rescues a former student from being hanged on a false conviction for murder, and spirits him away to an ancient, repurposed abbey far in the countryside. There, he connives his pupil into assisting him in mapping the functions of the various parts of the human brain, using living subjects who are under a terrible animation-suspending drug called "black sleep". Subsequently, the student, along with the daughter of one of the subjects, discover that most of these subjects have survived but are being kept in a dungeon-like cellar, in various stages of physical and mental derangement...
When was The Black Sleep released?
The Black Sleep was released on June 15, 1956. It has a runtime of 1h 22m. The film was produced by Bel-Air Productions.
Who stars in The Black Sleep?
The Black Sleep stars Basil Rathbone, Herbert Rudley, Patricia Blair and Akim Tamiroff. The full cast list is available in the Cast section above.
Is The Black Sleep available in HD?
Yes, The Black Sleep is available to stream in high definition (HD) on CineFlixo. Our players automatically deliver the best quality your connection supports — no extra setup needed.