Una farfalla con le ali insanguinate

Una farfalla con le ali insanguinate
Directed by	Duccio Tessari
Written by	Gianfranco Clerici Duccio Tessari
Starring	Helmut Berger, Ida Galli
Music by	Gianni Ferrio
Cinematography	Carlo Carlini
Release date	10 September 1971
Running time	95 minutes
Country	Italy
Language	Italian

Una farfalla con le ali insanguinate (a.k.a. The Bloodstained Butterfly) is a 1971 giallo film directed by Duccio Tessari. It was distributed internationally as The Bloodstained Butterfly, and as Das Geheimnis der Schwarzen Rose (Secret of the Black Rose) in West Germany. It starred Helmut Berger and Evelyn Stewart (a.k.a. Ida Galli).

When an attractive college student (Carole Andre) is stabbed to death in the park during a rainstorm, the police arrest TV sports announcer Alessandro Marchi (Giancarlo Sbragia) as the killer. His attorney presents a weak defense and Marchi is incarcerated, not realizing his lawyer is having an affair with his wife, and the two are glad to get rid of him. But the murders continue, so the police begin to think they've jailed the wrong man. The film's tagline is "Once the killing had started... it could never stop!"

Allmovie gave the film a positive review, writing "this beautifully assembled giallo is among the best of its time" and that it features a "genuinely intelligent script, a rarity in a subgenre generally known for flamboyant visuals at the expense of narrative cohesion."

...
Wikipedia