People are dying mysteriously and gruesomely, and nobody has a clue what the cause is. Only health worker Mike Brady has a possible solution, but his theory of killer slugs is laughed at by the authorities. Only when the body count begins to rise and a slug expert from England begins snooping around does it begin to look like Mike had the right idea after all.
Unfortunately the movie Slugs is not yet available on HBO Max.
| Production | José Antonio Escrivá | Producer |
| Writing | José Antonio Escrivá | Writer |
| Writing | Shaun Hutson | Novel |
| Editing | Antonio Gimeno | Editor |
| Directing | Juan Piquer Simón | Director |
| Writing | Juan Piquer Simón | Writer |
| Writing | Ron Gantman | Screenplay |
| Camera | Julio Bragado Darman | Director of Photography |
| Production | Juan Piquer Simón | Producer |
| Crew | Basilio Cortijo | Special Effects |
| Production | Francesca DeLaurentiis | Producer |
| Editing | Richard E. Rabjohn | Editor |
| Production | Bill Williams | Casting |
| Sound | Enrique Molinero | Sound Re-Recording Mixer |
| Costume & Make-Up | Manu Moreno | Hairstylist |
| Costume & Make-Up | María Eugenia Escrivá | Costume Design |
| Crew | Kari Christensen | Property Master |
| Art | Gonzalo Gonzalo | Art Direction |
| Crew | Patrick Tantalo | Special Effects Coordinator |
| Crew | Juan Mariné | Second Unit Cinematographer |
| Costume & Make-Up | Pilar Tavera | Seamstress |
| Camera | Carlos Bustamante | Still Photographer |
| Production | Gustavo Casado | Casting |
| Visual Effects | Carlo De Marchis | Special Effects Supervisor |
| Sound | Luis Castro | Foley |
| Lighting | Steve Nitzberg | Gaffer |
| Camera | Mark Foggetti | Camera Operator |
| Directing | Francesca DeLaurentiis | Script Supervisor |
| Lighting | Casimiro Dengra | Gaffer |
| Directing | Francesca Escriva | Script Supervisor |
| Sound | Tim Souster | Music |
