Overview

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.

Featured Cast

Peter Lorre

Warren Hymer

Amanda Duff

Robert Lowery

Leon Ames

Jean Hersholt

Douglass Dumbrille

Richard Lane

Charles D. Brown

Paul Harvey