As a veteran member of a South Bronx precinct, NYPD Sgt. Ralph Sarchie (Eric Bana) has seen more than his share of dark and horrifying events — so many that they have begun to poison his soul. Sarchie further finds his beliefs and understanding pushed to the limit when he and his partner investigate a particularly bizarre incident. He forms an alliance with a renegade priest (Edgar Ramirez), who tries to convince Sarchie that real evil — and demons — do exist.