The story revolves around a Basque Roman Catholic priest dedicated to committing as many sins as possible, a death metal salesman from Carabanchel, and the Italian host of a TV show on the occult. These go on a literal "trip" through Christmas-time Madrid to hunt for and prevent the reincarnation of the Antichrist.
You can now watch The Day of the Beast online on the following streaming providers in the United States.
| Writing | Jorge Guerricaechevarría | Screenplay |
| Editing | Teresa Font | Editor |
| Writing | Álex de la Iglesia | Screenplay |
| Sound | Battista Lena | Original Music Composer |
| Directing | Álex de la Iglesia | Director |
| Visual Effects | Rafa Solórzano | Digital Compositors |
| Costume & Make-Up | Estíbaliz Markiegi | Costume Design |
| Costume & Make-Up | José Quetglás | Makeup Artist |
| Production | Antonio Saura | Producer |
| Directing | José María González Sinde | Assistant Director |
| Production | Andrés Vicente Gómez | Producer |
| Camera | Flavio Martínez Labiano | Director of Photography |
| Production | Claudio Gaeta | Producer |
| Production | Carmen Martínez Rebé | Line Producer |
| Directing | Jorge Sempere | Assistant Director |
| Production | Fernando de Garcillán | Associate Producer |
| Visual Effects | Gabe Ibáñez | Animation |
| Sound | Ray Gillon | Sound Designer |
| Costume & Make-Up | José Antonio Sánchez | Makeup Effects Designer |
| Lighting | Ricardo Rodríguez | Electrician |
| Sound | Jaime Fernández-Cid Buscató | Boom Operator |
| Sound | Gilles Ortion | Sound |
| Camera | Juan Leiva | First Assistant Camera |
| Camera | Edmundo Sanz | Grip |
| Crew | Ignacio Carreño | Stunt Coordinator |
| Production | Carmen Martínez Rebé | Production Manager |
| Art | José Luis Arrizabalaga | Production Design |
| Costume & Make-Up | Mercedes Guillot | Hairstylist |
| Camera | Ramón Muñoz Bravo | Key Grip |
| Sound | Gareth Bull | Sound Effects Editor |
| Camera | Pipo Fernández | Still Photographer |
| Crew | Ismael Martínez | Stunts |
| Sound | Jaume Puig | Dolby Consultant |
| Art | Biaffra | Production Design |
| Art | Salvador López | Assistant Property Master |
| Production | Carmen Sánchez de la Vega | Assistant Production Manager |
| Production | Ángel Luis De Diego Jr. | Production Assistant |
| Editing | Irene Blecua | Assistant Editor |
| Costume & Make-Up | Miguel Sesé | Assistant Makeup Artist |
| Visual Effects | Miguel García-Villaraco Casero | VFX Artist |
| Sound | Miguel Rejas | Sound Designer |
