The Kiss of the Blade

When a British contract killer takes up the task of murdering a high school boy for two hundred thousand American dollars, she goes undercover as a 17 year old girl named Zee. But when the victim and herself start to get to know each other, they fall in love, and Zee's whole life begins to fall apart around her. She does her best to redeem her mistakes and live life to the fullest - the way her dead partner wanted her to, but in a tragic twist of fate, she ends up having an unforgivable murder on her conscience anyways.