Sam Dietz, divorced Los Angeles detective, is now back (from "up North") agrees to consult on a serial killer case. Not wanting to be anymore involved than that changes when the killer forces him to become actively involved in the investigation. The killer is someone he's arrested before... Written by
When the fear stops...you're dead!
Did You Know?
Although Leo Rossi
plays the main character in all four "Relentless" films, this is the first where he gets top billing. See more
Follows Dead On: Relentless II
Written by Chris Payne and Paul Rogers
Published by Associated Production Music (BMI) See more