A pathologist experiments with a deaf-mute woman who is unable to scream to prove that humans die of fright due to an organism he names The Tingler that lives within each person on the spinal cord and is suppressed only when people scream when scared.
Movie tag line: "Ghastly Beyond Belief!"
Production companies:
Character: Dr. Warren Chapin
Character: Oliver 'Ollie' Higgins
Character: Mrs. Martha Ryerson Higgins
Character: David Morris
Character: Lucy Stevens
Character: Isabel Stevens Chapin
Character: Prologue Host (uncredited)
Character: Ryerson - Screaming Convict (uncredited)
Character: Projectionist (uncredited)
Character: Member of Silent Movie Audience (uncredited)
Character: Member of Silent Movie Audience (uncredited)
Character: David Kinemon (archive footage) (uncredited)
Character: Member of Silent Movie Audience (uncredited)
Character: Member of Silent Movie Audience (uncredited)
Character: Member of Silent Movie Audience (uncredited)
Character: Member of Silent Movie Audience (uncredited)
Character: Member of Silent Movie Audience (uncredited)
Character: Luke Hatburn (archive footage) (uncredited)