Night Key is a science fiction

Science fiction

Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

 crime film

Crime film

Crime films are films which focus on the lives of criminals. The stylistic approach to a crime film varies from realistic portrayals of real-life criminal figures, to the far-fetched evil doings of imaginary arch-villains. Criminal acts are almost always glorified in these movies.- Plays and films...

 starring Boris Karloff

Boris Karloff

William Henry Pratt , better known by his stage name Boris Karloff, was an English actor.Karloff is best remembered for his roles in horror films and his portrayal of Frankenstein's monster in Frankenstein , Bride of Frankenstein , and Son of Frankenstein...

. It was released by Universal Pictures

Universal Pictures

-1920:* White Youth* The Flaming Disc* Am I Dreaming?* The Dragon's Net* The Adorable Savage* Putting It Over* The Line Runners-1921:* The Fire Eater* A Battle of Wits* Dream Girl* The Millionaire...

 in 1937.

Plot

The inventor of a burglar alarm attempts to get back at the man who stole the profits to his invention before he goes blind. The device is then subverted by gangsters who apply pressure to the inventor and use his device to facilitate burglaries.

Cast

• Boris Karloff
  Boris Karloff
  William Henry Pratt , better known by his stage name Boris Karloff, was an English actor.Karloff is best remembered for his roles in horror films and his portrayal of Frankenstein's monster in Frankenstein , Bride of Frankenstein , and Son of Frankenstein...
  
   (David Mallory)
• Jean Rogers
  Jean Rogers
  Jean Rogers was an American actress. She portrayed Dale Arden in two of the three Flash Gordon serials.-Early life:...
  
   (Joan Mallory)
• Warren Hull
  Warren Hull
  John Warren Hull was an actor and TV personality, active from the 1930s through the 1960s. He was one of the most popular serial actors in the action-adventure field....
  
   (Jim Travis)
• Samuel S. Hinds
  Samuel S. Hinds
  Samuel Southey Hinds was an American actor who is perhaps best remembered for playing Peter Bailey in It's a Wonderful Life and for his part in You Can't Take It With You , both films by Frank Capra...
  
   (Stephen Ranger)
• Hobart Cavanagh (Petty Louie)
• David Oliver (Mike Callahan)
• Charles C. Wilson (Police Captain Wallace)
• Alan Baxter (The Kid)

Trivia

• A scene from this movie is shown on a TV screen in the movie "The Ice Storm
  The Ice Storm (film)
  The Ice Storm is a 1997 drama film directed by Ang Lee, based on the 1994 novel of the same name by Rick Moody.The film features an ensemble cast of Kevin Kline, Joan Allen, Tobey Maguire, Christina Ricci, Elijah Wood, and Sigourney Weaver...
  
  "
• There is only one surviving print of this film, in a private collection in Pennsylvania, USA