ADDITIONAL NOTES: completed airing its first season on 2/1/19; has yet to be renewed for a second season
DESCRIPTION: (from Amazon's web site, February 2019) 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.