The Girl Who Knew Too Much (1963 movie)

The Girl Who Knew Too Much () is a 1963 Italian giallo movie. It was directed by Italian filmmaker Mario Bava. The movie stars John Saxon as Dr. Marcello Bassi and Letícia Román as Nora Davis.
The plot is about 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.