Distributed in the US in 1963, Agent of Doom was originally released in France four years earlier. The plot is set in motion when a famed atomic scientist makes a remarkable discovery. Unfortunately he may not live long enough to reveal it to the world; he becomes the target of sinister secret agents who'd prefer that he keep his mouth shut. But who can he trust? Annette Stroyberg and Michel Le Royer star in this plot-counterplot-countercounterplot espionage yarn. ~ Hal Erickson, All Movie Guide