Sezon 4
Bölümler
1 Bournemouth's Crossbow Killer 7 Oca 2020 2 The Acid Bath Murders 14 Oca 2020 3 The Murderous Bigamist 21 Oca 2020 4 The Blackpool Double Murder 28 Oca 2020 5 The Lady Killer 4 Şub 2020 6 The Merseyside Wheelchair Murderer 11 Şub 2020 7 The Brighton Trunk Murders 18 Şub 2020 8 Eastbourne's Dr Death 25 Şub 2020 9 The Newport Revenge Murder 3 Mar 2020 10 The Party Killer 10 Mar 2020