![Night Key](https://image.tmdb.org/t/p/original//uzSpblTomT5T6LU9JISlMei14T9.jpg)
![Night Key](https://image.tmdb.org/t/p/w200//wIi0b9ltscZCgRChoT6Xuw1hiuD.jpg)
Night Key
1 hour 8 minutes1937-04-18
6.1
Watch Trailer
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.
Cast
![Boris Karloff](https://image.tmdb.org/t/p/w200//fVi0QkiziavXB8HnWk5NzRcnCO1.jpg)
Boris Karloff
David Mallory
![Warren Hull](https://image.tmdb.org/t/p/w200//2Fii1yznMNrU5rnxrnFKhXlMyxI.jpg)
Warren Hull
Jim Travers
![Jean Rogers](https://image.tmdb.org/t/p/w200//xgaMi1FLSteMRRheehGJkx27v4i.jpg)
Jean Rogers
Joan Mallory
![Alan Baxter](https://image.tmdb.org/t/p/w200//5SO7LEA6TkBCP5kLTzQneKDK9Wk.jpg)
Alan Baxter
John Baron aka The Kid
![Hobart Cavanaugh](https://image.tmdb.org/t/p/w200//AjyCNH3j3ukDlxhP442kI2CoQkW.jpg)
Hobart Cavanaugh
Petty Louie
![Samuel S. Hinds](https://image.tmdb.org/t/p/w200//uwUEvtPnO79him7Lf8lwQlVW78X.jpg)
Samuel S. Hinds
Steven Ranger
![David Oliver](https://image.tmdb.org/t/p/w200//lbgZ6wjnryJEVUWabKznuVCWo9I.jpg)
David Oliver
Mike Callahan
![Ward Bond](https://image.tmdb.org/t/p/w200//6F8pPEwBHWDpX04R8LkARFejwtC.jpg)
Ward Bond
Fingers
![Frank Reicher](https://image.tmdb.org/t/p/w200//5q5kXKMDiBg7MrdcSdU5CZSQTgS.jpg)
Frank Reicher
Carl - gang engineer
![Edwin Maxwell](https://image.tmdb.org/t/p/w200//k31nSbkIkSqWelDQyWvn5zF1g9q.jpg)
Edwin Maxwell
Lawyer Kruger
![George Cleveland](https://image.tmdb.org/t/p/w200//xD8XBI4Va8HF6fpNpM2C2DHEL5w.jpg)
George Cleveland
Sam Adams - Company Engineer (uncredited)
![Ruth Fallows](/_next/static/media/notFound.aecd17f8.png)
Ruth Fallows
Waitress (uncredited)
![George Humbert](https://image.tmdb.org/t/p/w200//qBKG1we50E5peg8FeS3WwVYtjDQ.jpg)
George Humbert
Mr. Spinelli (uncredited)
![Nina Campana](/_next/static/media/notFound.aecd17f8.png)
Nina Campana
Mrs. Spinelli (uncredited)
![Charles C. Wilson](https://image.tmdb.org/t/p/w200//fnMy7U8FuGxSgwVGg2Qr9KNIhXk.jpg)
Charles C. Wilson
Police Capt. Wallace (uncredited)
![Chuck Hamilton](https://image.tmdb.org/t/p/w200//yEaR9SLMkQmEoW16Bf99hwLeQqT.jpg)