There are ghouls, gremlins and the grotesque but through its five seasons the anthology show really focuses on the human condition

A man with a stern expression and a shock of slick black hair, wearing a crisp black suit, cigarette in hand, approaches the camera. In his clipped, precise patter, he’s about to welcome you … to The Twilight Zone.

This is how each episode of The Twilight Zone typically began, with its creator, Rod Serling, delivering a brief, cryptic opening monologue before throwing to a stand-alone story.