My second favorite Argento flick after Tenebre. Nicely sadistic killer, adorable Cristina Marsillach in the lead (rumor has it she wasn't exactly Argento's favorite leading lady), William McNamara gets hacked up real good and did you know the chick who played the wardrobe mistress, who was also in Demons 2 and went on to appear in Mother of Tears, was only like 18 at the time? I would have sworn she was in her late 20s/early 30s.
Also LOVE the 80s metal soundtrack. Nice change of pace from the usual pounding Goblin score.