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
| role | name |
|---|---|
| Bob Rawling | Saverio Vallone |
| Betty | Michela Miti |
| Inspector Sanders | Tony Valente |
| Susan | Deborah Ergas |
| Mrs. Sanders | Sacha Darwin |
| Harriet Anderson | Solvi Stubing |
| role | name |
|---|---|
| Director | Giovanna Lenzi |
| Director | Sergio Pastore |
| Composer | Guido De Angelis |
| Composer | Maurizio De Angelis |
| Editor | Gianfranco Amicucci |
