Solamente nero (Only Blackness), internationally released as The Bloodstained Shadow, is a 1978 Italian giallo film co-written and directed by Antonio Bido. The film was referred to as "a fine example of a competent giallo, as it contains all of the requisite elements". Paul Simpson wrote about the film: "The pacing goes awry, but Bido uses the unusual setting well and the murders are memorably gory."