Geneticist Salvatore DeMartiano managed the unbelievable—he accidentally injected himself with infected leopard blood, which has altered his biochemistry. It doesn't help that he's miles into the Sudanese savannah where he cannot easily get the human blood and medicines he needs to solve the mystery of the gene-altering bacteria...

Until Julia Haverstock's plane crash-lands not far from his home. She's the only survivor. He's the only one who can speak English. She needs a way home. He needs her blood. Rather than explaining his bizarre predicament, he sets about seducing her, hoping to get close enough to convince her to help.