PoirothasjustfinishedacaseinIstanbulandisreturninghometoLondononboardtheluxuriousOrientExpress.But,thetraincomestoasuddenhaltwhenarockslideblocksthetracksahead.Andallthethrillsofridingthefamoustraincometoahaltwhenamandiscovereddeadinhiscompartment,stabbedninetimes.Thetrainisstranded.Noonehasgottenonorgottenoff.Thatcano…