Quick recap
Ariadne Oliver plans a mock murder hunt for the charity fête at Nasse House in Devon, but senses something is off and calls in Poirot. On the day, Marlene, the teenager playing the victim, is found really strangled at the agreed spot. At the same time the lady of the house, young Lady Stubbs, vanishes. Suspicion falls on a foreign cousin who showed up unannounced. Poirot struggles to see it. The truth: her husband, Sir George Stubbs, was a Folliat, of the family that once owned the house, living under another name. He had killed the real Hattie years before, and the woman posing as Lady Stubbs was his accomplice.

