Night Key (1937) - Rotten Tomatoes

Night Key1937

Night Key (1937)





Critic Consensus: No consensus yet.

Night Key Photos

Movie Info

In this crime thriller, an ailing scientist is robbed of the burglar alarm that he invented -- by his partner, who owns a security company. The scientist invents a superior alarm to provide for his daughter and tries to sell it to the company, but his partner refuses to sell it.

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Boris Karloff
as David Mallory
Warren Hull
as Jim Travers
Jean Rogers
as Joan Mallory
Hobart Cavanaugh
as Petty Louie
Samuel S. Hinds
as Steve Ranger
Alan Baxter
as John Baron
Edwin Maxwell
as Lawyer Kruger
Ward Bond
as Finger Man
Frank Reicher
as Carl - gang engineer
Ethan Laidlaw
as Henchman (uncredited)
Frank S. Hagney
as Henchman (uncredited)
George Cleveland
as Sam Adams - Company Engineer (uncredited)
Charles C. Wilson
as Police Capt. Wallace (uncredited)
Antonio Filauri
as Alarm Technician (uncredited)
Ralph Dunn
as ABC Delivery Garageman-Thug (uncredited)
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Critic Reviews for Night Key

All Critics (1)

A zippy plot and Karloff's immensely sympathetic portrayal make this one worth watching.

March 28, 2020 | Rating: 3/4 | Full Review…

Audience Reviews for Night Key


One of the first movies that I know of where the criminals use technology to commit crimes. It's very interesting in that respect, but otherwise it's kind of silly.

Aj V
Aj V

Super Reviewer

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