

The Invisible Ray
1936, English. Directed by Lambert Hillyer.
Delving into new, strange fields of mystery!
Dr. Janos Rukh discovers a certain type of radium that has almost magical healing properties. But the element has a dangerous side, too, and it has already started affecting Rukh. Consumed by paranoia, he begins to suspect that his wife is having an affair. Wild for revenge, Rukh hatches a deadly plot...using his own poisoned body as a weapon to kill.
- Runtime
- 1h 19m
- Post-credits
- None listed
- Language
- English
- Rated
- Check local
Start now and it ends at ….
Popcorn Flick
Fun if you don’t overthink it.
6.3/10 from 65 TMDB viewer ratings.
Seen it? Give your verdict.
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Where to watch The Invisible Ray
The Invisible Ray isn’t on a subscription OTT platform in India, but you can watch it free or rent it or buy it online.
Free
Availability in India as of 10 November 2026. Streaming data by JustWatch.
Cast & crew
- Lambert HillyerDirector
- Boris KarloffDr. Janos Rukh
- Bela LugosiDr. Felix Benet
- Frank LawtonRonald Drake
- Frances DrakeDiana Rukh
- Violet Kemble CooperMother Rukh
- Beulah BondiLady Arabella Stevens
- Walter KingsfordSir Francis Stevens
- Paul WeigelMonsieur Noyer
- Frank ReicherProfessor Meiklejohn
- Georges RenaventChief of the Surete
- May BeattyMme. LeGrand (uncredited)
- Paul McAllisterPapa LaCosta (uncredited)
Details
- Released
- 20 January 1936
- Country
- United States of America
- Written by
- John Colton, Douglas Hodges
Check ratings elsewhere
News & fan talk
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The Invisible Ray: quick answers
Is The Invisible Ray worth watching?
Our verdict is Popcorn Flick: Fun if you don’t overthink it. It scores 6.3/10 from 65 TMDB viewer ratings.
How long is The Invisible Ray?
The Invisible Ray runs 79 minutes (1h 19m).
Does The Invisible Ray have a post-credits scene?
None is listed for The Invisible Ray. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
The Invisible Ray parents guide: is it suitable for kids?
No age rating is listed for The Invisible Ray yet.
Which OTT platform is The Invisible Ray on?
The Invisible Ray isn’t on a subscription OTT platform in India, but you can watch it free or rent it or buy it online. (Checked 10 November 2026.)
What movies are like The Invisible Ray?
If you liked The Invisible Ray, try The Devil-Doll, The Raven, The Invisible Man Returns.
Who directed The Invisible Ray?
The Invisible Ray (1936) was directed by Lambert Hillyer and stars Boris Karloff, Bela Lugosi, Frank Lawton.