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?
Prudence Hardcastle
Gerald Hardcastle
Henry Hardcastle
Elizabeth Brett
Grace Hardcastle
Geraldine Hardcastle
Dr. Alan Huart
Roberta Bates
Tony Bates
Rose
Ted
Chemist
Woman in Tea Shop
Gerald's Secretary
Racetrack Official
Chemist's Assistant
City Banker in Taxi Cab (uncredited)
Mr. Ferguson (uncredited)
Dr. Morley (uncredited)
Man Sitting in Grandstand at the Races (uncredited)
Waiter (uncredited)
