Death Knocks Twice (1969) aka The Blonde Connection

Sorry, no trailer available on YouTube anymore. Here's the opening few minutes:



Soundtrack - Piero Umiliani



Directed by Harald Philipp.

Starring Fabio Testi, Dean Reed and Mario Brega.

IMDB

Four Of The Apocalypse (1975)

Soundtrack - Bixio, Frizzi, Tempera - Death's Song



Directed by Lucio Fulci

Starring Fabio Testi, Tomas Milian and Lynne Frederick

IMDB

Heroin Busters (1977)

Directed by Enzo G. Castellari. Starring Fabio Testi and David Hemmings (Deep Red).

IMDB

Contraband (1980) aka The Smuggler

Soundtrack - Fabio Frizzi - Do You Remember?:



Directed by Lucio Fulci

Starring Fabio Testi, Ivana Monti and Guido Alberti

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What Have You Done To Solange (1972)

Soundtrack - Ennio Morricone:



Watch the entire movie here:



Directed by Massimo Dallamano

Starring Fabio Testi, Cristina Galbó and Camille Keaton

IMDB