"Released from captivity in Vietnam, two American Army officers return to civilian life and discover they have acquired an insatiable taste for human flesh. A city is terrorised... as they stalk the inhabitants to satisfy their primitive appetites."
John Saxon
as Norman Hopper
Elizabeth Turner
as Jane Hopper
Giovanni Lombardo Radice
as Charlie Bukowski
Cinzia De Carolis
as Mary
Tony King
as Tom Thompson
Wallace Wilkinson
as Captain McCoy
May Heatherly
as Helen
Ramiro Oliveros
as Dr. Phil Mendez
Venantino Venantini
as Lieutenant Hill
Renzo Pevarello
as Hospital Assistant
Edoardo Margheriti
as Police Officer (uncredited)
Walter Patriarca
as Mr. Philipps, Jane Hopper's guest at TV Station (uncredited)
Luca Venantini
as Bobby (uncredited)
Goffredo Unger
as Mall Guard (uncredited)
Renzo Marignano
as Dr. Morris (uncredited)
Paul Costello
as Newscaster (uncredited)
Taso N. Stavrakis
as Citizen (uncredited)
Antonio Margheriti
Director
Maurizio Amati
Producer
Dardano Sacchetti
Screenplay
Story
Edmondo Amati
Sandro Amati
Alexander Blonksteiner
Original Music Composer
Fernando Arribas
Director of Photography
Giannetto De Rossi
Makeup Artist
Lucia Mirisola
Costume Design
Art Direction
Sylvia Mays
Casting
Louis Pierce
Production Manager
Giorgio Serrallonga
Editor