Leon is a photographer who wants to capture unique, gritty shots of the city and the people who live in it. He is crushed when, instead of giving him his big break, gallery owner Susan instead criticizes him for not taking enough risks. Emboldened, he heads into the city's subway system at night, where he takes pictures of an impending sexual assault before eventually saving the woman. The next day, he discovers she has gone missing. Intrigued by the mystery, he investigates reports of similar disappearances. His investigation leads him to a butcher named Mahogany, whom he suspects has been killing subway passengers for the past three years.