Lucy - attractive young girl who meets a charming young man to whom she had a feeling. The guy tells her to reciprocate, and between them begins a whirlwind romance. However, she had no idea what will her acquaintance with this man. One suitor asks her to tell no one case Mr. Chen, after which it becomes a witness to several brutal murders, and her stomach is unknown party drug. After some time, the package inside her torn, and the body gets the girl stuff, forcing her brain to work one hundred percent. From that moment Lucy becomes the most dangerous weapon in the world ..