A year ago, Boy, the son of Frankenstein’s monster, had never even met a human. Now he’s living with his human “family,” the descendants of Dr. Frankenstein, in Switzerland. That is, until the maniacal genius Dr. Moreau, long-ago banished to a remote island for his crimes against humanity, asks for Boy's help.

Moreau wants Boy to join his army of animal/human hybrid creatures and help him overthrow human society. Boy will do anything to save this broken, wondrous world from the war that threatens to split it in two. But how much will he have to give up? And is the world worth saving?