Lessee... the H has issues, mostly due to having been - prior to the treatments - a scrawny dweeb with a receding hairline (well, that's how the book described him). He was the sort who would have lived in his mother's basement if his mother had been a tolerale human being. He ended up in the treatment program, not of his own volition, but because he had a car accident and was on life support. His mom essentially sold him to Chimera. So... he has no idea what he looks like now; just that he has all these animalistic urges, and also no idea how any of this happened.
The h...is a free roaming experiment, and also the daughter of one of the Drs. She fried her brain from drug use and has not much of a conscience. She's called in to fetch the H, who has been roaming wild, just outside the lab.
Issues I had - he was a little too forgiving of a woman who injected him with tranquilizers multiple times (including the point where he was recaptured). She was just a little too...cold blooded about it.
There are other issues, relating to the series in general but they can wait for that last book.