For me this is Dario Argento's most overlooked, underrated film. The plot skeleton - young girl adrift in a foreign school whilst a murderer wreaks havoc - is obviously Suspiria, but, incredibly, this film makes that effort look almost conventional. Some of the scenes in the final 20 minutes are genuinely unbelievable - swarms of insects, homicidal chimpanzees, an unforgettable face, Iron Maiden, extreme violence and a certain young future Oscar winner looking on with unfeigned bewilderment - whats not to love!
The Anchor Bay Region 1 disc is recommended. Check out the Bill Wyman video on the extras - bet he would shudder to see this now!