Well, it’s not hard to spot because William F. Vallicella names it in his title Philosophy from the Twilight Zone “The Lonely”.
I have seen it relatively recently because I started running through the first season on DVD a couple years ago, but petered out after a while as is my general wont with television series on DVD. As “The Lonely” was the seventh episode, I made it at least that far. Jack Warden plays the incarcerated man, by the way.
