The Twilight Zone: The Lost Episode

In the Twilight Zone Andrew is at least twenty years old, with the mind of a six year old child. He has lived within the same room his entire life never having the oppertunity to interact with the world outside. All he knows is what hes been taught by a mysterious voice from behind the door which has become his adoptive mother. When one day he becomes a bit over curious, and we
all know what happened to that cat..