When private detective Bob Martin looking for a stolen diamond necklace, he also has a clever serial killer on the trail ...
Genres:
Dean Reed as Bob Martin
Fabio Testi as Francesco di Villaverde
Ini Assmann as Ellen Kent
Leon Askin as Peppe Mangano
Werner Peters as Charly Hollmann
Riccardo Garrone as Armando Locatelli
Mario Brega as Riccardo
Hélène Chanel as Angela
Femi Benussi as Lois Simmons
Renato Baldini as Lionel Simmons
Teodoro Corrà as Rinaldo
Lanfranco Cobianchi as
Tom Felleghy as Berry
Nadja Tiller as Maria di Villaverde
Anita Ekberg as Sophia Ferretti
Adolfo Celi as "der Professor"
Marlies Petersen as Babsie
Bruno Ariè as Charly's Henchman
Antonietta Fiorito as (credit only)
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