Hercule Poirot series starring Peter Ustinov.
https://themoviedb.org/collection/752992
https://themoviedb.org/collection/719387
https://themoviedb.org/collection/515582
https://themoviedb.org/collection/515583
https://themoviedb.org/collection/93559
Hercule Poirot (Peter Ustinov) Collection
Official List