Bava pays explicit homage to Hitchcock in this fun, mostly light
An American girl vacationing in Rome witnesses what might be a
murder (or is it her overactive imagination, spurred on by her love
of cheap mystery novels?). And before you know it, she's the
possible target of a serial killer.
The black and white photography is beautiful, but Bava tones his
style down just a bit, and it works; the photography compliments
the story, without swamping it,.
There are weak spots, like an annoying voice over that insists on
explaining what the images are making very clear by themselves,
and performances that are uneven (especially in supporting roles).
But, the bottom line is, if it wasn't in Italian, one could even believe
this was a Hitchcock film, which is a pretty high compliment...