Terry and Gemma are forced to take refuge in a sinister and dilapidated caravan park after their coach breaks down. During the unplanned stay, visitors and residents begin to be bumped off one by one under grizzly circumstances.
Unfortunately the movie Dial M for Middlesbrough is not yet available on HBO Max.
| Writing | Jason Cook | Writer |
| Directing | Ed Bye | Director |
| Camera | Roy Estabrook | Director of Photography |
| Editing | Mark Wybourn | Editor |
| Crew | Steen Young | Stunt Coordinator |
| Crew | Lucy Allen | Stunts |
| Production | Tracey Gillham | Casting Director |
| Production | Michelle Cavanagh | Casting Assistant |
| Directing | Adam Jenkins | First Assistant Director |
| Directing | Liz Summers | Second Assistant Director |
| Directing | Tillie Ross | Third Assistant Director |
| Crew | Bram Sewell | Floor Runner |
| Directing | Chrissie Bibby | Script Supervisor |
| Production | Mathias Gilay | Production Manager |
| Production | Bradley Kelly | Production Secretary |
| Production | Joanne Burton | Production Accountant |
| Production | Guy Darby | Location Manager |
| Lighting | Stefan Lissner | Gaffer |
| Lighting | Jim Russell | Electrician |
| Lighting | Tyrone Reid | Electrician |
| Camera | Cameron Howatson | Focus Puller |
| Camera | Loren Filis | Assistant Camera |
| Camera | Alistair Upcraft | Camera Operator |
| Camera | Ben Curran | Focus Puller |
| Camera | Lina Rasmussen | Assistant Camera |
| Camera | Lucy Bradley | Camera Trainee |
| Camera | Eurico Machado | Camera Trainee |
| Camera | David Manktelow | Camera Trainee |
| Camera | Chris 'Froggy' Cole | Grip |
| Sound | Ben Collinson | Boom Operator |
| Art | Caroline Caley | Art Direction |
| Art | Toby Troyna | Property Master |
| Crew | Dave Billsberry | Carpenter |
| Crew | Scott McIntyre | Special Effects |
| Costume & Make-Up | Jacqui Miles | Costume Supervisor |
| Costume & Make-Up | Toni Lee | Makeup Supervisor |
| Costume & Make-Up | Donna-Marie Field | Makeup Artist |
| Costume & Make-Up | Anna Hillary | Makeup Trainee |
| Editing | Perry Gibbs | Colorist |
| Sound | James Evans | Sound Editor |
| Writing | Mollie Freedman Berthoud | Script Editor |
| Sound | Keith Branch | Sound Recordist |
| Costume & Make-Up | Lucy Williams | Costume Design |
| Costume & Make-Up | Vanessa Johnson | Makeup Designer |
| Costume & Make-Up | Vanessa Johnson | Hair Designer |
| Art | Thorin Thompson | Production Design |
| Production | Andrew Harvey | Line Producer |
| Production | Andy Brereton | Executive Producer |
| Production | Fawzia Mahmood | Producer |
