Story 1 is based on the short story "The Extra Passenger" by August Derleth writing under the pseudonym "Stephen Grendon". "The Extra Passenger" was first published in Weird Tales (January 1947).
Story 2 is based on the short story "A Terribly Strange Bed" by Wilkie Collins. This story was first published in Household Words (April 24 1852).
Story 3 is based on the short story "The Mask of Medusa" by Nelson Bond. This story was first published in Bluebook (December 1945).
Host: This is an English pub. Just the place for a little something to warm the cockles of your heart... while I chill your blood. They give you a mild claret, guaranteed to fortify you against, heh, well, against anything. If the people's clothes seem strange, well, it's because we're in 1905, when the dollar was still a dollar and a British pound was a beautiful gold coin. We're going to see three forces of evil. Three stories, each a masterpiece of strangeness and terror. In this room is a young man who is on his way to commit a murder.
Host: She wants money, he wants her. Well, to satisfy both these desires, young people, someone will have to die. Drink your claret. You're going to need it. You are about to meet the extra passenger in one of the eeriest tales ever told.
Host: You'll take another glass of this claret, of course. It'll brace you for a different force of evil. All the night birds show up sooner or later at a pub like this. Musicians between shows. Detectives looking for someone. Peers of the realm, reporters, actors, men about town. Flotsam of a great city. And people in trouble or looking for trouble.
Host: I sometimes think--perhaps you do, too--how outrageous it would have seemed to anyone a hundred years ago, if they had been told that some day men would be doing exactly what you're doing now. Listening to a voice, watching a picture plucked as if, uh, out of the air. We've learned a lot in the last hundred years. But how much do you suppose has been forgotten in the past five thousand? You know how scientists scoff at folklore and ancient beliefs. But every now and then they amaze themselves with a discovery that our remote ancestors were right after all. Our third tale of terror contains the echo of an ancient fable that may not be a fable at all. It begins with a manhunt, a search for a murderer. A strangler, if you will.