The ABC Murders 1x2 - Series 1, Episode 2

Despite being warned off the case by Inspector Crome, Poirotcontinues to conduct his own investigation into the ABC killer.He receives another letter promising a murder in Churston anddeciphers that the potential victim must be someone from hispast. When national interest in the crimes begins to explode,the public turns against the Belgian sleuth, bringing hisintegrity into question.