In Paris, on the Avenue des Champs-?lys?es, an old man suddenly vanishes without a trace: a new plague has reached France, and will soon grow to terrible proportions. The event is witnessed by a cytologist working at the Aristotle Institute, who is also a Polyplast--the result of an experiment in selective breeding intended to produce pacifists, but which has also had perverse results. As a result of his presence at the crucial event, the Polyplast...