Violence at Noon
白昼の通り魔 (original)
Starring Saeda Kawaguchi, Akiko Koyama, Kei Satō, Rokkō Toura, Hideo Kanze, Hideko Kawaguchi, Narumi Kayashima, Teruko Kishi, Hōsei Komatsu, Ryoko Takahara
It's a drama and crime movie, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Italy.