

Lost Caverns Hotel bellhop Freddie Phillips is suspected of murder. Swami Talpur tries to hypnotize Freddie into confessing, but Freddie is too stupid for the plot to work. Inspector Wellman uses Freddie to get the killer (and it isn't the Swami).
Acting
Karloff playing straight man to Costello's chaos
Writing
Hypnotism scenes that break every logical rule
Practical Effects
Gothic hotel sets on a studio budget

Director
Charles Barton
Trivia, insights & behind the scenes
This was the last time Karloff played a genuine horror-type character until 1963's The Raven, making it a farewell to his golden-age persona.
The 'Lost Caverns Hotel' elevator scenes were shot on a tilted set so Costello could roll naturally—no stunt double needed for the human bowling ball bit.
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Reactions from the web
This movie was hilarious!
@eddieblancher7557 7
Happy 75th anniversary!
@bigbadjohn-wt7wz 1
Where can you get this video?
@michaelsack9981 1
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