Beginning is a bit too cryptic for quick understanding, but when plotline [adapted by Cyril Hume from a suggested story by Lawrence Taylor] does take shape, the story builds and holds attention. Joseph H. Lewis’ direction spins it along expertly, neatly pacing the suspenseful sequences.
Hedy Lamarr is the lady of the title. Lingering in Cuba, she is used by an undercover immigration agent to set up a trap for the smuggling ring operated by George Macready. A complication is the romantic development between the lady and the agent.
Footage lensed in Cuba helps to supply an authentic touch. Cuban street scenes and Latin musical strains, an earthy rhumba by cafe dancer Nita Bieber, are among the good touches backing the plot runoff.