A mysterious murderer has already killed seven people using the deadly venom of a snake from Martinique which causes immediate death with the victim's face turning into a horrible mask. A young and ingenious police lieutenant is called on the case
Director:
Saverio Vallone
Bob Rawling
Michela Miti
Betty
Tony Valente
Inspector Sanders
Michel Clinford
Deborah Ergas
Susan
Alessandra Izzo
Gianfranco Gallo
Sacha Darwin
Mrs. Sanders
Solvi Stübing
Harriet Anderson
Louis Dek
Gianni Dei
Harry Francis
Lara Orfei
Laura Troschel
Mirta Francis
George Ardisson
Chief of Police (as Giorgio Ardisson)
Giovanna Lenzi
Julie Garrett (as Jeannette Len)
Linda Christian
The Narrator
Simonetta Gallese
Vittorio Forte
Alessandro Croce
Giovanni Nardoni
Emy Valentino
