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Night Key (1937)

Approved  |   |  Crime, Thriller  |  2 May 1937 (USA)
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Ratings: 6.3/10 from 450 users  
Reviews: 24 user | 10 critic

The inventor of a new top-of-the-line burglar alarm system is kidnapped by a gang in order to get him to help them commit robberies.



(screenplay), (screenplay) (as John C. Moffitt) , 1 more credit »
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Complete credited cast:
Jim Travers (as J. Warren Hull)
Jean Rogers ...
Alan Baxter ...
John Baron aka The Kid
Hobart Cavanaugh ...
Samuel S. Hinds ...
Stephen Ranger (as Samuel Hinds)
David Oliver ...
Mike Callahan


The inventor of a new top-of-the-line burglar alarm system is kidnapped by a gang in order to get him to help them commit robberies.

Plot Summary | Add Synopsis


Crime | Thriller


Approved | See all certifications »





Release Date:

2 May 1937 (USA)  »

Also Known As:

Alerte la nuit  »

Company Credits

Production Co:

Show detailed on  »

Technical Specs


Sound Mix:

(Western Electric Mirrophonic Recording)

Aspect Ratio:

1.37 : 1
See  »

Did You Know?


Character actor Lloyd Corrigan, an inexperienced director, had replaced Sidney Salkow, who had replaced Arthur Lubin, who had replaced Ralph Murphy. See more »


Featured in 100 Years of Horror: Boris Karloff (1996) See more »

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User Reviews

Enjoyable light weight 30's SCI-FI / Crime Film
27 September 2006 | by (United States) – See all my reviews

The Story 20 years ago Boris Karloff invented a security system which his then best friend stole the patient from him. 20 years later his best friend and Boris' crooked lawyer tricks Boris into signing a contract which assures that his new and better security system will never be used. Now, Boris has a second invention though that he is going to use to get revenge on his ex-best friend.

My Review Boris takes a break from horror and makes a very solid SCI-FI / crime drama. I enjoyed this film from the opening frames. It was a little bit of a light weight movie, but very enjoyable. Boris does a solid job as David Mallory. Jean Rogers is pleasing to the eyes as his daughter, Joan Mallory. Hobart Cavanaugh is a little campy but fun as the two-bit hood, Petty Louie.

The movie does a solid job getting you to care about David and Joan Mallory. It also does a good job building up suspense. The romance between Joan and Jim Travis (Warren Hull) is believable and nicely done.

My recommendation: We have a winner here. It is a nice, enjoyable light weight 1930's film.

9 of 9 people found this review helpful.  Was this review helpful to you?

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