An attempt by NBC to emulate the success of the CBS hit The Twilight Zone, this hour-long anthology series showcased different actors, stories and creative talent each week.

An unnamed character is trapped in a cubical white room where others can enter and leave, but which he himself apparently cannot leave. A stool is brought in covered in strawberry jam, the furniture changes throughout the play. The main character is subjected to an increasingly puzzling and frustrating series of encounters, as a variety of people come through various hidden doors. But, as many remind him, he can only leave through his own door, so he must find it.