There are dedicated playlists for the series under titles like Случаите на Поаро bg audio .
You can find playlists and individual episodes of "Случаите на Поаро" (Poirot's Cases) with Bulgarian dubbing on platforms like: slucaite_na_poaro_1989_sezon_1_epizod_2_bg_audi...
Although it initially looks like a suicide, Poirot’s "little grey cells" lead him to suspect otherwise. He notices discrepancies at the crime scene, such as the smell of smoke despite cigarettes in the ashtray and clues suggesting the victim was left-handed while the gun was found differently. There are dedicated playlists for the series under