also been pointed to as a possible influence, in particular his 1958 film Mannequin in Red. Though the film shares stylistic and narrative similarities with later giallo films (particularly its use of color and its multiple murder plot), there is no direct evidence that subsequent Italian directors had seen it. The first "true" giallo film is usually considered to be Mario Bava's The Girl Who Knew Too Much (1963). Its title alludes to Alfred Hitchcock's classic The Man Who Knew Too Much (1934, remade by Hitchcock in 1956), highlighting the early link between gialli and Anglo-American crime stories. Though shot in black and white and lacking the lurid violence and sexuality which would define later gialli, the film has been credited with establishing the essential structure of the genre: in it, a young American tourist in Rome witnesses a murder, finds her testimony dismissed by the authorities, and must attempt to uncover the killer's identity herself. Bava drew on the krimi tradition as well as the Hitchcockian style referenced in the title, and the film's structure served as a basic template for many of the gialli that would follow. Bava followed The Girl Who Knew Too Much the next year with the stylish and influential Blood and Black Lace (1964). It introduced a number of elements that became emblematic of the genre: a masked stalker with a shiny weapon in his black-gloved hand who brutally murders a series of glamorous fashion models. Though the movie was not a financial success at the time, the tropes it introduced (particularly its black-gloved killer, provocative sexuality, and bold use of color) would become iconic of the genre."Lucas, Tim. Blood and Black Lace DVD, Image Entertainment, 2005, liner notes. ASIN: B000BB1926 Several similarly-themed crime/thriller movies followed in the next few years, including early efforts from directors Antonio Margheriti (Nude... si muore [Naked You Die] in 1968), Romolo Girolami (Il dolce corpo di Deborah [The Sweet Body of Deborah] in 1968), Umberto Lenzi (Orgasmo in 1969, Paranoia [A Quiet Place to Kill] and Così dolce... così perversa [So Sweet... So Perverse] in 1969), Riccardo Freda (A doppia faccia [Double Face] in 1969) and Lucio Fulci (Una sull'altra [One on Top of the Other] in 1969), all of whom would go on to become major creative forces in the burgeoning genre. But it was Dario Argento's first feature, in 1970, that turned the giallo into a