Lucille Fletcher writes in her preface that “the original radio version […] still offers the most effective means by which [the play] can be produced” (5). Which plot events and themes would be most affected by the method of presenting the play?

Mrs. Stevenson argues that it is her civic duty to try to prevent the murder from happening. Does Mrs. Stevenson seem more driven to solve the mysterious phone call by this sense of duty, or is she more driven by her own fear? Use examples from the play to support your answer.

How does Fletcher use irony throughout the play to intensify the danger of Mrs. Stevenson’s situation?