"Sir Guy Charteris" (Walter Huston) is an entrepreneurial British developer who has his eyes on the gin-palace of "Mother Gin Sling" (Ona Munson). The latter woman is running her successful den of iniquity and has no intention of acquiescing to the venal aspirations of her new nemesis. Determined to fight back, she enlists the help of the rather unscrupulous "Dr. Omar" (a rather mis-cast Victor Mature) to ensure that "Poppy" (Gene Tierney) - the daughter of "Charteris" - is introduced to the delightful effects of opium! The story becomes further complicated when it transpires that there is a p...