83 mins | Thriller, Horror, Mystery | July 8, 1966
83 mins | Thriller, Horror, Mystery | July 8, 1966
| IMDb rating | 6.9 |
| Producers | FUL Films |
| Original title | Operazione paura |
| Directors | Rosalba Scavia, Lamberto Bava, Mario Bava |
| Writers | John Davis Hart, Roberto Natale, Romano Migliorini, Mario Bava |
as Dr. Paul Eswai
as Monica Schuftan
as Ruth
as Insp. Kruger
as Karl
as Baroness Graps
as Nadienne
as Martha
as Innkeeper
as Irena Hollander
as Melissa Graps
as Inn Patron (uncredited)