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

Genres

Cast

Saverio Vallone

Bob Rawling

Michela Miti

Betty

Alessandra Izzo

Gianfranco Gallo

Gianni Dei

Harry Francis

Laura Troschel

Mirta Francis

George Ardisson

Chief of Police (as Giorgio Ardisson)

Giovanna Lenzi

Julie Garrett (as Jeannette Len)

Linda Christian

The Narrator