Double Crossed

Amelia Faye is an assasin. It's her way of life. One day, her agency gives her a 'target'. She is to hunt and kill (don't know his name yet, sorry!) in Paris, France. When she finally meets him though, he seems harmless and innocent. Did the agency have a mix up and choose the wrong person? She starts flirting with him, and eventually starts falling for him. But everyone has secrets. So... What is his?