Narrator: Mr. and Mrs. Franklin Gibbs, three days and two nights, all expenses paid, at a Las Vegas hotel, won by virtue of Mrs. Gibbs's knack with a phrase. But unbeknownst to either Mr. or Mrs. Gibbs is the fact that there's a prize in their package neither expected nor bargained for. In just a moment one of them will succumb to an illness worse than any virus can produce, a most inoperative, deadly, life-shattering affliction known as the fever.
Mr. Henson: You are important, Mrs. Gibbs. After all, it isn't every day that entertain celebrated contest winners.
Photographer: No, not every day. Maybe every other day.
Franklin: If there's one thing I know, Flora, it's morality. And I will not have this tainted money smelling up our pockets.
Slot Machine: Franklin!
Franklin: That machine, Flora, was ready to pay off and it deliberately broke down so it wouldn't have to! It--it's not even a machine, Flora. It's an entity, it's a thing with a mind and will of its own.
Franklin: Give me back my dollar!
Narrator: Mr. Franklin Gibbs, visitor to Las Vegas, who lost his money, his reason, and finally his life to an inanimate metal machine variously described as a one-armed bandit, a slot machine or, in Mr. Franklin Gibbs's words, a monster with a will all its own. For our purposes we'll stick with the latter definition because we're in the Twilight Zone.
"The Fever" is the only 1st season episode to not use the original Twilight Zone theme music during the closing credits. Rather, it uses the closing credits music from the 2nd-4th seasons.