Dr. Forti carries out strange experiments, assisted by his son Pablo. They embark on an expedition to the jungle. Eight years later Forti returns without his son but strange things start to happen in the old house where they live.
| Editing | Juan Bustillo Oro | Editor |
| Camera | José Gutiérrez Zamora | Camera Operator |
| Costume & Make-Up | Dolores Camarillo | Makeup Artist |
| Crew | Germán Cueto | Makeup Effects |
| Production | Alberto Monroy Cajiga | Producer |
| Sound | Rafael Ruiz Esparza | Sound |
| Production | José Alcayde | Producer |
| Art | Carlos Toussaint | Production Design |
| Directing | Juan Bustillo Oro | Director |
| Camera | Agustín Jiménez | Director of Photography |
| Writing | Juan Bustillo Oro | Writer |
| Sound | Federico Ruiz | Original Music Composer |
