Mercenary Mick Carerra considered himself ruthless, determined, and at times, amoral. But he always got the job done. That's why Dr. Raymond Edwards hired him. A radical gene experiment had gone wrong and the patient needed to be eliminated-Mick was just right for the job.

However, Mick didn't expect the face of his soon-to-be victim, Caterina Shaw, to be so beautiful. The attraction was instant, and this was the first time that Mick ever had to question one of his targets.

Mick locates Caterina, but instead of a deranged killer he finds an innocent and injured woman who seems to be part human, part chameleon. Mick can't help but feel for her. He takes her to a safe house to treat her injuries and find out more about this mysterious woman. As the story unfolds, Mick sees the human side of Caterina and realizes that she was just a pawn in a terrible game...one that will claim more victims unless Mick can clear Cat's name and capture the true criminal.