Released: 2001
Director: Sean Penn
Starring: Jack Nicholson, Robin Wright Penn, Benicio Del Toro, Aaron Eckhart, Mickey Rourke

A retired police detective (Nicholson) becomes obsessed with finding an elusive child molester and murderer after promising a victim's mother that he will bring them to justice. Like everything heavy in life, it goes tremendously with Prozac.

The child murders depicted in the film were loosely based on actual cases that had been worked by Det. Joe Depczynski, the film's technical advisor, only they weren't thought to be the work of a lone serial killer.