"The Midnight Sun" is episode 75 of the American television anthology series The Twilight Zone, first shown in November, 1961.
The word that Mrs. Bronson is unable to put into the hot, still, sodden air is 'doomed,' because the people you've just seen have been handed a death sentence.
The place is New York City and this is the eve of the end, because even at midnight it's high noon, the hottest day in history, and you're about to spend it - in the Twilight Zone.The Earth's orbit has been perturbed, causing the planet to slowly fall into the Sun.
A radio presenter announces that the police have been moved out of the city and that citizens must defend themselves against looters, then angrily goes off script before being forcibly taken off the air.
In an attempt to console Mrs. Bronson, Norma shows her an oil painting of a waterfall cascading into a lush pond.
Mrs. Bronson deliriously claims that she can feel the coolness and splashes in the imaginary waters before dying from heat stroke.
Moreover, the episode was shot in the summer, on a set without air-conditioning, with the director actually turning up the heat on certain key scenes to create the necessary mood and appearance for the story.
[1] Serling's original script featured two characters who did not appear in the completed episode: a police officer and a refrigerator repairman.