Deluxe giallo from writer-director Dario Argento, with a presentation so stylish it threatens to overwhelm the plot. Dedicated husband and drummer for a rock band angrily confronts a mysterious man who's been following him; they scuffle and the stranger ends up stabbed with his own knife. No one is around to help the shaken musician, but there is one witness: a person in costume with a camera. This isn't a blackmailer--they don't want money--but the musician is quickly taunted with photos and notes...and soon, the people closest to him start dropping like flies. Argento shows an uncanny grasp of character here, and his roster of victims and suspects is delicious (there's also a scripture-quoting con-man who acts as a lookout, a terrified postman afraid of delivering the mail and a gay gumshoe hired by the protagonist who hasn't solved one case in his last 87!). Argento is a cinematic madman; his screenplay might not hold up under close scrutiny, but it's hard to nitpick with the small details when the end results are this tantalizing. *** from ****