Out of the Unknown: The Counterfeit Man (1.2, BBC, 1965)
"I've thought about this until I'm sick of thinking about it! I tell you, I'm afraid, I'm so afraid I can't sleep. This... this thing, it's here, it's - it's loose in our ship, and we can't even prove or detect its existence. If it were good, or friendly, or peaceable, it would have made itself known from the start. But it didn't do that. Don't you see what that implies? It murdered. Twice, it murdered."






















