A killer is on the loose, and an FBI agent sifts through clues and learns that the bloodthirsty felon's victims of choice are other serial killers.
- Year: 2004
- Country: Germany, United Kingdom, United States of America
- Genre: Crime, Thriller
- Studio: Paramount, Cruise/Wagner Productions, Lakeshore Entertainment, Intermedia, IM Filmproduktion
- Keyword: serial killer
- Director: E. Elias Merhige
- Cast: Aaron Eckhart, Ben Kingsley, Carrie-Anne Moss, Harry Lennix, Kevin Chamberlin, Julian Reyes