Directed by Ronald Neame, Fielder Cook | Starring: Deborah Kerr, David Niven, Joyce Redman, Judy Geeson

Prudence Hardcastle is on the pill. So is her sister-in-law, but someone has been swapping aspirin for their pills. Is it the teenage niece, the maid, the chauffeur, a lover, Prudence's husband Gerald, or all of the above?.

IMDb Prudence and the Pil... movie posters