Mysterious and unearthly deaths start to occur while Professor Saxton is transporting the frozen remains of a primitive humanoid creature he found in Manchuria back to Europe.
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| Directing | Eugenio Martín | Director |
| Writing | Arnaud d'Usseau | Screenplay |
| Writing | Julian Zimet | Screenplay |
| Production | Bernard Gordon | Producer |
| Production | Gregorio Sacristán | Associate Producer |
| Camera | Alejandro Ulloa | Director of Photography |
| Sound | John Cacavas | Original Music Composer |
| Editing | Robert C. Dearberg | Editor |
| Art | Ramiro Gómez | Production Design |
| Art | Ramiro Gómez | Set Decoration |
| Production | José María Ramos | Production Supervisor |
| Writing | Gene Martin | Story |
| Costume & Make-Up | Rafael Berraquero | Assistant Makeup Artist |
| Costume & Make-Up | Fernando Florido | Makeup Artist |
| Costume & Make-Up | Romana González | Assistant Hairstylist |
| Costume & Make-Up | Julián Ruiz | Makeup Supervisor |
| Costume & Make-Up | María Nieves Ruiz | Hairstylist |
| Production | Juan Gracia | Unit Production Manager |
| Directing | Gil Carretero | Assistant Director |
| Directing | Vicente Escrivá hijo | Second Assistant Director |
| Art | John Chisholm | Props |
| Art | Jesús Mateos | Decorator |
| Art | Rafael Pérez Murcia | Assistant Art Director |
| Art | Julián Martín | Painter |
| Sound | Manuel Ferreiro | Boom Operator |
| Sound | Antonio Illán | Sound Supervisor |
| Sound | Luis López Díaz | Sound Recordist |
| Sound | Enrique Molinero | Sound Mixer |
| Crew | Pablo Pérez | Special Effects |
| Crew | Fernando Pérez | Special Effects |
| Camera | Teo Escamilla | Camera Operator |
| Camera | Simón López | Still Photographer |
| Camera | Luis Peña | Focus Puller |
| Camera | Antonio Vega | Assistant Camera |
| Costume & Make-Up | Andrés Fernández | Wardrobe Master |
| Costume & Make-Up | Charles Simminger | Wardrobe Supervisor |
| Editing | Carmen Alonso | Assistant Editor |
| Editing | Fernando Megino | Assistant Editor |
| Editing | Mari Carmen Taberner | Assistant Editor |
| Crew | Katrina Bayonas | Unit Publicist |
| Production | José Luis Rubio | Production Assistant |
| Directing | Isabel Ruiz Capillas | Script Supervisor |
