Detective Halloran helps hunt down a man whom he knows, and who has always been a well-liked solid citizen before suddenly snapping and going on a killing spree throughout the city.

Cast: John McIntire, James Franciscus, Harry Bellaver, Woodrow Parfrey, Suzanne Storrs, Guy Spaull, Dorothy Peterson, Kirk Alyn, Matt Crowley, Richard Kronold, John C. Becher, Shawn Donahue, Robert Dryden, Maria Gambarelli, Nina Hansen