- Country: Italy, Spain
- Genres: Adventure
- Release: 1967-01-12
- Director: Roberto Bianchi Montero
- Writers: Jesús María de Arozamena , Roberto Bianchi Montero
- Language: Italian
- Stars: Germán Cobos , Germán Cobos , María Mahor , Franco Ressel , Gabriella Andreini , Remo De Angelis , Maria Pia Conte , Irving G. Mayer , Charles Jerwis , Sal Borgese , Pietro Ceccarelli
- Runtime: 97 min
- Awards: N/A
- AKA: Tecnica per un massacro (Italy) , Agente Z 55: Secreto atomico (Spain) , Operation hjärntvätt (Sweden) , Blueprint for a Massacre (United States of America) , Agente Z55: Atomic Secret , İstanbul Macerası (Turkey) , Blueprint for a Massacre , Técnica para um Massacre (Brazil) , Técnica para un sabotaje (Spain) , Tecnica per un massacro , O tyhodioktis tou Vosporou (Greece)
- Plot: A series of incidents involving aircrafts belonging to NATO nations indicates a systematic sabotage.
- IMDB:tt0062410
Tecnica per un massacro Cast · · · ALL
Roberto Bianchi Montero
Director
Germán Cobos
Danny O'Connor / Agent Z-55
María Mahor
Aya
Franco Ressel
Steve Brand
Maria Pia Conte
Blanche
Gabriella Andreini
Patricia Johnson
Remo De Angelis
Carlo Gervasi
Romano Giomini
Sal Borgese
(uncredited)
Pietro Ceccarelli
Max (uncredited)