A hit man working for the Yakuza double crosses his employers and flees with a cache of diamonds from the latest heist. Injured and hiding in the mountain regions of Spain, with Japanese assassins in hot pursuit, he takes refuge in the home of a local doctor and his two daughters who nurse him back to health and hide him from his pursuers, taking drastic and murderous measures to protect him... for they have plans of their own in store for their current guest.
Unfortunately the movie The Beasts' Carnival is not yet available on HBO Max.
| Production | Masurao Takeda | Producer |
| Writing | Paul Naschy | Screenplay |
| Production | Julia Saly | Producer |
| Directing | Paul Naschy | Director |
| Camera | Alejandro Ulloa | Director of Photography |
| Costume & Make-Up | Consuelo Zahonero | Hairstylist |
| Costume & Make-Up | Ángel Luis de Diego | Makeup Artist |
| Production | Paul Naschy | Executive Producer |
| Production | Hideo Sasai | Executive Producer |
| Editing | Pedro del Rey | Editor |
| Costume & Make-Up | León Revuelta | Costume Design |
| Art | Luis Vázquez | Art Direction |
| Directing | Sebastián Almeida | Assistant Director |
| Art | Kiosi Hasimoto | Assistant Art Director |
| Art | Julio Arribas | Property Master |
| Directing | Ángela Cristóbal | Script Supervisor |
| Sound | Enrique Molinero | Sound Engineer |
| Camera | Juan Cobo | Assistant Camera |
| Camera | Guillermo Peña | Assistant Camera |
| Costume & Make-Up | José Quetglás | Assistant Makeup Artist |
| Production | Modesto Pérez Redondo | Production Manager |
| Directing | Kenichi Hikeda | Assistant Director |
| Sound | Luis Castro | Foley Artist |
| Art | Eiji Tsuchiya | Assistant Art Director |
| Costume & Make-Up | Carmen de la Casa | Costumer |
| Camera | Juan Antonio de la Cueva | Assistant Camera |
| Directing | Tosihiro Nakahara | Assistant Director |
| Directing | Junichi Suzuki | Assistant Director |
| Editing | Blanca Rodríguez | Assistant Editor |
| Production | Hidemasa Ogata | Production Assistant |
| Production | Masurao Takeda | Production Coordinator |
| Lighting | Antonio García Gálvez | Lighting Technician |
| Production | Masataka Shibahara | Production Assistant |
| Camera | José Salvador | Still Photographer |
| Editing | María Florinda Vidal | Assistant Editor |
| Sound | José Antonio Bermúdez | Sound Engineer |
| Crew | Juan Ramón Molina | Special Effects |
| Camera | Kazuumi Sugimoto | Assistant Camera |
| Camera | Masanori Fukuzawa | Assistant Camera |
| Lighting | Katsunari Uchida | Lighting Technician |
| Camera | Kenji Hagiwara | Camera Operator |
| Crew | Benito Casado | Carpenter |
| Crew | Teo Garcia | Transportation Captain |
| Production | Masakatsu Saito | Production Assistant |
| Lighting | Diego Molina | Lighting Technician |
| Camera | Eduardo Noé | Camera Operator |
| Production | Josep Guerrero | Production Assistant |
| Lighting | Casimiro Dengra | Electrician |
| Lighting | Motogiro Noguchi | Lighting Technician |
| Production | Felipe Ventura | Production Assistant |
| Lighting | Francisco Jurado | Lighting Technician |
| Lighting | Katsumasa Naoi | Lighting Technician |
| Lighting | Antonio Sánchez | Lighting Technician |
