83 mins | Thriller, Horror, Mystery | June 2, 1970
83 mins | Thriller, Horror, Mystery | June 2, 1970
| IMDb rating | 6.3 |
| Producers | Mercury Films, Pan Latina Films, Películas Ibarra y Cía. |
| Original title | Il rosso segno della follia |
| Directors | Marisa Agostini, Ricardo Walker, Patrizia Zulini, Lamberto Bava, Mario Bava |
| Writers | Mario Musy Glori, Santiago Moncada, Mario Bava, Laura Betti |
as John Harrington
as Helen Wood
as Mildred Harrington
as Inspector Russell (as Jesus Puente)
as Alice Norton
as Louise
as Vences (as Alan Collin)
as Dr. Kalleway (as Gerard Tichy)
as Betsy Wester (as Veronica Llimera)
as John Harrington as a Boy (as Fortunato Pascuale)
as Jimmy Kane (as José Ignacio Abadaz)
as Vicky
as Rosy Miller (as Monserrat Riba)
as Sdenka (archive footage) (uncredited)
as Unknown (uncredited)
as Policeman (uncredited)
as Model (uncredited)
as Maria (archive footage) (uncredited)
as Gorca (archive footage)
as Giorgio (archive footage) (uncredited)