In the Lights Out episode "The Dark", two men enter a room in which they find a terrifying new kind of darkness..
As the episode opens, a doctor and a policeman are driving through the country in response to a request for help.
When they arrive at their destination, they find an empty house. At first, they think the call may have been a false alarm, but when they enter, they find a hysterical woman.
The doctor is certain that the injured person must be in the other room, and when they break down the door, they find a man...turned inside out...and a creeping black mist...
The Lights Out episode of"The Dark" aired on December 29, 1937, but the original recording is lost. Below is a short episode that was recreated for the 1962 Arch Oboler album Drop Dead! It runs a little over eight minutes, much shorter than the original half-hour show.