In 2383, all the men on Earth are dead. The Anti-Male world government, convinced it was "God's will", has outlawed all research into re-creating males.

Working illegally, Randi Mayers, the world's foremost sex-replacement designer, aims to create the closest thing to a real man the technology is capable of. William, the result of advanced nanite technology incorporated with DNA, is the ultimate "sex replacement" and everything Randi dreamed of. His sexual prowess leaves her breathless — and very, very satisfied.

But William is much more than a machine, dammit — he's a man! As his "testing" continues and he demonstrates more and more human characteristics, they fall in love, but discovery and industrial espionage place them on a collision course with the Anti-Male faction, with dire results.