"I cannot make sense of this data from Sine. I have never seen so much woman in any sample before." John Djerassi, the genomic profiling expert looked pondering at Samuel. He smiled, as he continued: "Looks like the Perfect Woman." It should have been an easy case for Samuel, a New York traffic police officer. "Rapid closure with a perfect report, which can support your resume," was the guidance from his boss. But when Sine died a violent death, Samuel suddenly found himself embedded in a hugely complicated case with scrupulous utilization of modern biological sciences at its core for a viral war leading to extinction of all people, except those of a certain kind.