After a young man is killed in an unexplored subterranean cavern and his girlfriend driven mad by something she saw there, a track found at the scene cannot be identified with any known animal and thus a scientific expedition is launched to find out just what it is that is living there.
After a young man is killed in an unexplored subterranean cavern and his girlfriend driven mad by something she saw there, a track found at the scene cannot be identified with any known animal and thus a scientific expedition is launched to find out just what it is that is living there.
Top Cast
José Elías Moreno
Character: Profesor Díaz
Carlos Cortés
Character: Dr. Pena
Kitty de Hoyos
Character: Hilda Ramírez
David Reynoso
Character: Jaime Rocha
Columba Domínguez
Character: Laura Ponce
Javier Solís
Character: Dr. Manuel Ríos
Carmen Molina
Character: Julia
Ramón Bugarini
Character: Apolinar
Carlos Nieto
Character: Novio de Julia
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