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.
| Editing | Teresa Font | Editor |
| Directing | Álex de la Iglesia | Director |
| Writing | Álex de la Iglesia | Screenplay |
| Writing | Jorge Guerricaechevarría | Screenplay |
| Sound | Battista Lena | Original Music Composer |
| Visual Effects | Rafa Solórzano | Digital Compositors |
| Costume & Make-Up | Estíbaliz Markiegi | Costume Design |
| Production | Carmen Martínez Rebé | Line Producer |
| Directing | Jorge Sempere | Assistant Director |
| Production | Claudio Gaeta | Producer |
| Production | Fernando de Garcillán | Associate Producer |
| Production | Andrés Vicente Gómez | Producer |
| Production | Antonio Saura | Producer |
| Directing | José María González Sinde | Assistant Director |
| Camera | Flavio Martínez Labiano | Director of Photography |
| Costume & Make-Up | José Quetglás | Makeup Artist |
| Visual Effects | Gabe Ibáñez | Animation |
| Sound | Jaume Puig | Dolby Consultant |
| Art | José Luis Arrizabalaga | Production Design |
| Camera | Juan Leiva | First Assistant Camera |
| Crew | Ignacio Carreño | Stunt Coordinator |
| Art | Biaffra | Production Design |
| Sound | Gilles Ortion | Sound |
| Camera | Ramón Muñoz Bravo | Key Grip |
| Camera | Pipo Fernández | Still Photographer |
| Costume & Make-Up | José Antonio Sánchez | Makeup Effects Designer |
| Camera | Edmundo Sanz | Grip |
| Costume & Make-Up | Mercedes Guillot | Hairstylist |
| Production | Carmen Martínez Rebé | Production Manager |
| Sound | Jaime Fernández-Cid Buscató | Boom Operator |
| Sound | Ray Gillon | Sound Designer |
| Sound | Gareth Bull | Sound Effects Editor |
| Crew | Ismael Martínez | Stunts |
| Lighting | Ricardo Rodríguez | Electrician |
| Production | Ángel Luis De Diego Jr. | Production Assistant |
| Art | Salvador López | Assistant Property Master |
| Costume & Make-Up | Miguel Sesé | Assistant Makeup Artist |
| Editing | Irene Blecua | Assistant Editor |
| Production | Carmen Sánchez de la Vega | Assistant Production Manager |
| Visual Effects | Miguel García-Villaraco Casero | VFX Artist |
| Sound | Miguel Rejas | Sound Designer |
