spy detective story from Queen of Classic Crime, whose stories do not age. In the world, young scientists begin to strangely disappear. One of them is the promising researcher Thomas Betterton, whose case will be in charge of intelligence clerk Mr. Jessop. Shortly thereafter, he meets Hilary Craven, strikingly similar to Betterton's wife, who tragically died in a ruined aircraft. Jessopa thinks of getting out. Together with Hilary, they embark on a risky game to get on the track of an organization that is trying to dominate humanity.