A terror is stalking the land: people are disappearing daily, their bodies appearing covered in savage gashes coupled with precise surgical cuts. The legend of the 'Werewolf of Allariz' spreads across the land like wildfire. When Barbara (Elsa Pataky) falls in love with travelling vendor Manuel Romasanta, she is at first besotted with him - but soon begins to be suspicious of him. What has happened to her sister, who - after being escorted by Romasanta to the city - seems to have disappeared forever.
| Writing | Elena Serra | Screenplay |
| Production | Julio Fernández | Executive Producer |
| Directing | Paco Plaza | Director |
| Production | Carlos Fernández | Executive Producer |
| Production | Julio Fernández | Producer |
| Sound | Mikel Salas | Original Music Composer |
| Editing | David Gallart | Editor |
| Writing | Alberto Marini | Screenplay |
| Costume & Make-Up | Elvira Guijarro | Assistant Hairdresser |
| Production | Zaza Ceballos | Associate Producer |
| Production | Pep Armengol | Casting Director |
| Production | Albert Martínez Martín | Co-Producer |
| Costume & Make-Up | Sonia Grande | Costume Designer |
| Production | José Luis Jiménez | Line Producer |
| Production | Carol Dudley | Casting Director |
| Art | Balter Gallart | Art Direction |
| Production | Teresa Gefaell | Line Producer |
| Writing | Brian Yuzna | Creative Producer |
| Production | Carola Ash | Associate Producer |
| Writing | Alfredo Conde | Story |
| Production | Stephen Margolis | Co-Executive Producer |
| Crew | Javier Salmones | Cinematography |
| Art | Balter Gallart | Production Design |
