The Silence - S2-E25
Trivia: Midway through shooting, Franchot Tone got into a brawl that left him with facial abrasions on one side so severe they couldn't be covered with make-up. So, in the "glass room" scenes, shots of him are, bizarrely, in profile only or taken from behind barriers obscuring half his face. Some profile shots were reversed to create the illusion that in various takes, we were seeing both sides of him. (00:17:00)