In Puerto Rico to investigate a glut of contraband diamonds that are flooding the world's jewel market, Mr. Moto and his sidekick, a wrestler, find themselves involved in murders by thrown daggers, the frame-up of an overstressed Army colonel, and a pirate gang led by an unknown boss who has inside knowledge of the ensuing investigation.
DIRECTOR
CAST

Peter Lorre
Kentaro Moto

Warren Hymer
Twister McGurk

Amanda Duff
Joan Castle

Robert Lowery
Lt. George Bentley
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Keywords
rescue
puerto rico
murder
shootout
whodunit
dagger
private detective
black stereotype
framed for murder
red herring
knife murder
intelligence agent
outlaw gang
japanese man
police department
army colonel
abduction
diamond smugglers
swamp hideout
colonial governor
feigned illness
launch pursuit
asian man
pro wrestlers