An evil doctor and the greedy wife of a rich man plot to poison him so they can get their hands on his money.
Acting
Karloff's silky villainy outshines the entire cast.
Production
Glossy 1930s studio sets aging like fine poison.

Director
Henry Edwards
Trivia, insights & behind the scenes
This was Karloff's final British film before Frankenstein made him a horror icon in Hollywood.
The 'tropical disease' plot device casually echoes British imperial anxieties about colonial spaces.