A vicious criminal has been paying for the research of a mad scientist, working on an electronic disintegration machine - with which he can "send living flesh by wire..." Tired of waiting, but buoyed by the demonstration of the complete disappearance of 'living flesh', the criminal kills the scientist and takes the machine. However, Lamont Cranston knows about the invention and when he and Margo discover the man's crime, only the Shadow can help...