"An LSD Bummer Before the Term Was Coined"

"Fuller's script, originally titled 'Lunatic,' was written in the late '40s and offered to Fritz Lang. The premise, based on a famous late 19th century journalistic stunt, had a reporter feign madness to expose a murder committed in an insane asylum. By the time the scenario reached the screen, however, it had become topical—the events of late 1962 and early 1963, including the Cuban missile crisis and the escalating struggle for civil rights, had percolated in writer-director-producer Fuller's imagination."

J. Hoberman in the Los Angeles Times revisits Sam Fuller's Shock Corridor.