A Blade in the Dark.
Early 80s giallo from Lamberto Bava. Has its fair share of flaws and red herrings, but a more than decent effort. Neat kills (not many but the few which are in are superb), chilling score and good direction and characterisation. The two things which are a setback - the pacing and the length (needed better editing work), and the score towards the end, which was rather obnoxious.
A must-see for any giallo fan. I recommend it.
Rating - * * * ½