Somewhat reminiscent of the 1965 film
The Satan Bug,
And Millions Will Die is a thriller based upon the premise of germ warfare. A lunatic plans to extort millions of dollars by threatening to unleash a deadly nerve gas upon the citizens of Hong Kong. He prepares to make good his threat--but then dies before he can reveal the underground location whence the gas will be released.
Richard Basehart, the villain in
Satan Bug, switches sides to play frenzied scientist who races against time to unearth the lethal gas in
And Millions Will Die. Given its foolproof premise, the film is disappointedly bereft of suspense, though the Hong Kong scenery is lovely. ~ Hal Erickson, All Movie Guide