A man inadvertently gets caught near a car explosion, and after he recovers from his injuries realizes that he has amnesia. Soon evidence begins to mount that he could be "The Claw Hammer Killer, " a serial murderer who targets for death the former patrons of a particular restaurant called Puzzles.
Robert Urich
as Allan Strong
Kay Lenz
as Karen Hicks
Jim Metzler
as Kevin Carlisle
Richard Monette
as Stuart Kessler
Michael Ironside
as Det. Carl Madsen
Geoffrey Bowes
as Young Doctor
Barbara Radecki
as Hostess
Christine Mitges
as Jean Montgomery