The ABC Murders

1933. Hercule Poirot, older and greyer, receives letters threatening murder. The sender signs themselves only as “A.B.C.” When he takes the letters to the police looking for help, Hercule finds all his old friends have moved on. But soon there is a murder and the once-great detective must take matters into his own hands.

Synopsis from TMDB

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Cast

John Malkovich

Hercule Poirot

Rupert Grint

Inspector Crome

Eamon Farren

Cust

Andrew Buchan

Franklin Clarke

Bronwyn James

Megan Barnard

Tara Fitzgerald

Lady Hermoine Clarke

Cast and crew data from TMDB