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.

• DirectorHerbert I. Leeds
• Release7 April 1939
• Genre
  Crime / Mystery
• Duration1h 4m
• Budget?
• Revenue?
• Rate
  

  6.7
  20 reviews
• Productions

  20th Century Fox