The directorial debut of of the master of giallo, Italian thrillers, and legendary filmmaker, Dario Argento, The Bird With the Crystal Plumage was a huge box office and critical success, launching Argento's directing career and being widely known as the 'Italian Hitchcock '. This film helped set the template that all Gallo films would follow, although many came before it, business one of the earliest and majorly successful. This was also the first in his 'animal trilogy', followed by 'Cat of Nine Tails ' and 'Four Flies in Grey Velvet'. When American writer, Sam, living in Rome, witnesses a brutal assault on a woman, he determined to help the investigation, then obsessed with solving the case. With numerous, grisly murders afterward, and his life, along with his girlfriend 's, in jeopardy, and every lead being a dead end, he must think fast, he saw and knows the answer, Jennings to remember.