I'm perhaps something of a barbarian, but I enjoyed many Poirot TV-adaptations without having read the original stories. Same here: I loved the attention to detail, the beautiful acting and the turns and twists in the plot. If I had read Agatha Christie's book I might very well have reacted like the other viewers. But without this knowledge: Suchet is as great as ever, and for the rest: nothing but class. Let's be thankful TV still offers quality like this. And besides: how nice to see 'Sam' from Foyle's War in a less heroic role here... Perhaps Christie-readers should be less fundamental in judging adaptations? (I'm sure about their answer).