The Girl Who Knew Too Much is a 1963 Italian giallo film. Directed by Italian filmmaker Mario Bava, the film stars John Saxon as Dr. Marcello Bassi and Letícia Román as Nora Davis. The plot revolves around a young woman named Nora, who travels to Rome and witnesses a murder. The police and Dr. Bassi don't believe her, since a corpse can't be found. Several more murders follow, tied to a decade-long string of killings of victims chosen in alphabetical order.
The Spanish Steps, where Davis believes she has witnessed a murder
Letícia Román in 1961. The Girl Who Knew Too Much was Román's first leading role.
John Saxon
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John Saxon was an American actor who worked on more than 200 film and television projects during a span of 60 years. He was known for his work in Westerns and horror films, often playing police officers and detectives.
Saxon (right) with Sal Mineo and Sue George in a publicity still photo for Rock, Pretty Baby (1956)
John Saxon, Shelley Fabares, John Wilder and Jill St. John in Summer Love (1958)
Saxon in Petrocelli, 1975,