Amyas Crale had een famous as a painter ... and infamous as a lover. his fiery wife, Caroline, had been as jealous as she was devoted. So naturally it was she who was tried and convicted for his murder.
Now their daughter, Carla, presents the brilliant Hercule Poirot with the greatest challenge of his career - to clear her mother's name by finding the fatal flaw in what, after sixteen years, appears to be the perfect crime!
Meredith Blake stared at Poirot. "My dear man, if she didn't - "
"Well, if she didn't?"
"I can't imagine any alternative solution. Accident? Surely impossible."
"And I can't believe in the suicide theory. It had to be brought forward, but it was quite unconvincing to anyone who knew Crale."
"So what remains?" asked Meredtih Blake.
Poirot said coolly, "There remains hte possibilty of his having been killed by somebody else.."