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
Cast
Saverio Vallone
Bob Rawling
Michela Miti
Betty
Tony Valente
Inspector Sanders
Michel Clinford
Unknown
Deborah Ergas
Susan
Alessandra Izzo
Unknown
Gianfranco Gallo
Unknown
Sacha Darwin
Mrs. Sanders
Solvi Stübing
Harriet Anderson
Louis Dek
Unknown
Gianni Dei
Harry Francis
Lara Orfei
Unknown
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
Unknown
Vittorio Forte
Unknown
Alessandro Croce
Unknown
Giovanni Nardoni
Unknown
Emy Valentino
Unknown
