A fast dash through biology when unknown causes start knocking off citizens of Union City. Newspaperman Travis, hospitalized, is in on the first case, sees a beautiful blonde administer a lethal hypodermic, ties in with the police to work it out how the males are being destroyed. Film, radio and TV are affected by radiation and the discovery of a new race -- the haploids (women of sterile cellular construction) comes to light....with a battle to the finish. Mad scientist division of SF.