Journalist Barrett (Peter Breck) has cracked his fast track to the Pulitzer: Have himself committed to an insane asylum to uncover the details of an unsolved murder. It’s an airtight plan until Barrett finds himself in the company of a Black student who fancies himself a white nationalist and proud member of the Ku Klux Klan, a captured and brainwashed Korean War vet, and a nuclear scientist so terrified of obliteration at the hands of atomic weapons he’s regressed to the age of six. Don’t worry, Barrett tells his girlfriend, I got a handle on this. The mad ones always do. The titular corridor is journalist/novelist/filmmaker Samuel Fuller’s grand metaphor for America. It’s blunt, heavy-handed, and chilling as hell. Even worse, not much has changed since its release 50-plus years ago. Streaming on The Criterion Channel and HBO Max.