A showcase of sleuthing genius. In The Under Dog, Poirot uncovers a web of complex relationships in a family where the nephew stands accused of murdering his uncle. In Four-and-Twenty Blackbirds, Poirot becomes curious while speaking with a waitress about one of her regular customers who is murdered after inexplicably changing his dining habits. In The Dream , an eccentric millionaire dies after having a recurring dream of killing himself. Was it suicide or murder by hypnosis?