Violet (Alexis Bledel) and Daisy (Saoirse Ronan) are a pair of gum-chomping, gun-toting teenage assassins who casually snuff out crime figures in New York City, bothered only by the fact that a concert by their favorite pop idol Barbie Sunday has suddenly been canceled. Determined to raise cash for some Barbie Sunday dresses, the duo takes on a new hit, only to discover a kind of reckoning in the form of sad-sack shut-in (James Gandolfini) who is dying alone in his apartment of terminal cancer.