Fatal Kiss(2008)

Love to Kill is about Francis Sweet, a young gorgeous woman who uses her beauty and charm to lure wealthy men into giving her all their money and then she kills them. Francis is a mysterious attractive woman who catches the eye of Nicholas, a widower and an aspiring politician. Nicholas falls head over heels but he may have fallen for the wrong girl and he's not the only one. Is she deceiving him or is she worse...a black widow?