[Machine Translation] Sixteen years ago, my mother died in prison after being tried for poisoning my father, an acclaimed painter. But she was innocent. Moved by the daughter's request, Poirot sets out to re-investigate the case. After meticulously gathering testimonies from those involved at the time, Poirot sets out to find out the truth behind the case. This is the latest translation of his masterpiece on the theme of murders in the past.