War threatens London as Miss Pettigrew, an unfairly dismissed governess, in desperation filches a client's card from her agency and reinvents herself as a social secretary. This sheltered lady finds herself in an unaccustomed world of champagne, parties and sex and her new boss, Delysia, juggling three different men, a young West End producer, a nightclub owner and a piano-playing ex-con, and Miss Pettigrew herself is at ease with fashion impresario Joe. If she can sort out both their love lives she may well have found her calling. A superior screwball comedy.