Answer:
Mrs. Stevenson is a lady who is disabled in her bed and only has the telephone within her reach. She is totally flustered and nervous and realizes that she could be the person who is gonna be killed.
Explanation:
This question refers to the work <em>Sorry, Wrong Number by Lucille Fletcher.
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This lady had a lot of money and jewelry, and could not get out of bed as she was invalid.
She finds herself in front of a line crossing that allows her to listen to a conversation in which two individuals speak of the imminent murder of a woman who is gradually acquiring her characteristics, in her deranged mind and in reality.
She becomes more and more crazy and desperate from the moment everyone leaves her aside: it is confirmed that the police do not give credit to her request for help, the nurses are absent, the husband is unreachable, etc.
All this happens until she realizes that it is she herself who will be killed.