Jack Argyle is wegens moord op zijn moeder tot levenslang veroordeeld, maar al na zes maanden sterft hij in de gevangenis. Aan zijn schuld heeft nooit iemand getwijfeld, tot er twee jaar na de moord ineens iemand komt opdagen die Jack een alibi had kunnen geven.
 | Seizoen 1 Aflevering 1 Episode 1 Datum: 2018-04-01 Lengte: 60 min |
 | Seizoen 1 Aflevering 2 Episode 2 Datum: 2018-04-08 Lengte: 60 min |
 | Seizoen 1 Aflevering 3 Episode 3 Datum: 2018-04-15 Lengte: 60 min |
| Writing | Agatha Christie | Novel |
| Production | Basi Akpabio | Executive Producer |
| Production | Mark Murdoch | Line Producer |
| Production | Roopesh Parekh | Producer |
| Production | Karen Lindsay-Stewart | Casting |
| Camera | John Lee | Director of Photography |
| Sound | Stuart Earl | Original Music Composer |
| Production | Gaynor Holmes | Executive Producer |
| Production | Sarah Phelps | Executive Producer |
| Production | James Prichard | Executive Producer |
| Production | Karen Thrussell | Executive Producer |
| Production | Damien Timmer | Executive Producer |
| Production | Helen Ziegler | Executive Producer |
| Art | Catrin Meredydd | Production Design |
| Art | Jo Riddell | Production Design |
| Art | Fiona Gavin | Art Direction |
| Art | Gordon Grant | Set Decoration |
| Editing | Adam Recht | Editor |
| Editing | Jo Smyth | Editor |
| Costume & Make-Up | Claire Harris | Makeup Artist |
| Costume & Make-Up | Lee Melrose | Makeup Artist |
| Costume & Make-Up | Nikki Cowe | Makeup Artist |
| Sound | Ian Waggott | Foley Artist |
