"The Bird with the Crystal Plumage" is a 1970 Italian giallo film directed by Dario Argento. The story follows an American writer, Sam Dalmas, who witnesses an attempted murder in a secluded art gallery. As he becomes entangled in the investigation, he uncovers a series of brutal killings linked to a mysterious figure. The film is notable for its stylish cinematography and suspenseful storytelling. It features a blend of horror and mystery elements, characteristic of the giallo genre, which often includes psychological thrills and intricate plots. The film's title refers to a key clue in the unfolding mystery.