The persnickety and perceptive Belgian detective Hercule Poirot is one of Agatha Christie's most beloved creations. Never one to shy away from self praise, Poirot exercises his "little grey cells," helping police investigate crimes and murders — whether they seek his help or not.

In Series IX, David Suchet (Henry VIII, The Way We Live Now) returns to his signature role as Poirot in two new mysteries based on Christie's novels. In Cat Among the Pigeons, a small English girl's school is the setting for a mystery of international intrigue, and in Mrs. McGinty's Dead, the meddling detective with the waxed mustache may soon be in a similar circumstance if he doesn't watch out.