When struggling photographer Leon Kaufman (Bradley Cooper) meets the owner of a prominent art gallery, he sees a chance for the success that has, so far, eluded him. Determined to show the darker side of humanity for his debut showing, Leon crosses paths with Mahogany (Vinnie Jones), a serial killer who preys on late-night subway commuters. His fascination with Mahogany pulls him - and his lover (Leslie Bibb) - deep into an evil abyss.