85 mins | Thriller, Horror, Mystery | Sept. 13, 1979
85 mins | Thriller, Horror, Mystery | Sept. 13, 1979
| Producers | Productora Mazateca |
| Original title | Una rata en la oscuridad |
| Directors | Alfredo Salazar |
| Writers | Alfredo Salazar |
as Josefina
as Sonia
as La mujer del cuadro
as Doctor Salas
as Madre
as Hija
as Recepcionista del hospital
as Enfermera