Sheila Webb, a typist-for-hire, arrives at her afternoon appointment to find a well-dressed corpse surrounded by six clocks, four of which are stopped at 4:13. When a blind woman enters the house, Sheila runs screaming into the street and into the arms of a young man who plays a key part in the investigation that follows.
While Poirot investigates a famed psychiatrist's murder, crime novelist Ariadne Oliver looks into a couple's mysterious death.