Quick recap
Three novels, film length. In The ABC Murders, Hastings is back from South America and Poirot gets letters from one A.B.C., who announces murders in alphabetical order and leaves a railway guide by each body. The apparent culprit is salesman Alexander Bonaparte Cust, but Poirot proves Franklin Clarke killed his brother for the inheritance and buried it in a fake series. In Death in the Clouds, a moneylender dies on a plane Poirot himself is on. In One, Two, Buckle My Shoe, the death of Poirot's dentist leads to a powerful banker, Alistair Blunt, who turns out to be the killer.
No spoilersOpens once you mark the title as seen.