Air hostess Maggie lives in a converted windmill, to which Ann and Maggie’s latest , an airline pilot Terry, are coming to celebrate her birthday.
Maggie has some peculiar tastes, including tape recording the most private intimacies between herself and her lovers. This indulgence soon causes consternation among the visitors, which include her neighbour Jenny and Jenny’s husband. This culminates in the death of Anne’s fiance.
A horrific climax follows and Ann who is very much affected by a recent airways accident, is distraught when apparently threatened by Jenny. A final twist proves the relevance of the play’s title.