Nick of Time: A man (this is Wiliam Shatner’s other episode) becomes obsessed with a fortune-telling machine topped with a little devil head on a spring.

Two: A man (Charles Bronson) and woman (Elizabeth Montgomery), who belong to opposite sides in a war meet in a deserted town.

Number Twelve Looks Just Like You: In the future, everyone undergoes a procedure that makes them perfect. One girl wants to stay herself and imperfect but learns that the operation is NOT optional.

In the episode I’m thinking about, there was no elevator operator (and no question asked), but there was both a nurse and a stewardess who said, “Room for one more, honey.” A jar did break in the last few minutes but no elevator cables snapped.

That episode was called “Twenty-Two” and involved a woman with a recurring nightmare.

…

An elderly, wheelchair-bound lady named Elva Keene receives strange anonymous phone calls. At first the caller says nothing, and all that can be heard is static. In subsequent calls, he can be heard moaning. After several calls, Elva says repeatedly, \Hello? Hello?\ The caller finally says slowly, garbled, and weakly, \Hello?\. Elva demands to know who is calling, but the only response is \Hello?\ Finally the caller manages to get out the words, \Where are you? I want to talk to you.\

Elva has had enough and screams at the man to leave her alone. There are no more calls and the phone company traces the source to a fallen telephone line.

Elva and her housekeeper visit the location of the line given by the telephone operator. To the astonishment of both, they find themselves at a cemetery, and they find that the line is resting on the grave of Elva’s long-deceased fiancé, Brian Douglas. Elva says that she always insisted upon having her own way, and Brian always did what she said. A week before they were to be married, she insisted upon driving, and lost control of the car. The accident left Brian dead, and she, a lonely cripple. Now she can talk to him again, she won’t have to be alone.

At home, she picks up the phone and calls out to Brian. She pleads with him to answer so that she can talk to him. He replies that she has told him to leave her alone, and that he always does what she says. Then the line goes dead, leaving Elva alone and crying in her bed