Craig J. Clark’s review published on Letterboxd:
"You've crossed the boundaries of reality, Jane. You can't go back."
Top-tier giallo from the maestro, Sergio Martino. From the opening nightmare, which would freak just about anybody out, to the Satanic rituals the overwrought Jane (Edwige Fenech) is talked into taking part in as a way of quelling her growing paranoia, All the Colors of the Dark does not lack for outré imagery. And when a giallo seems to be wrapping up when it still has 15 minutes to go, that's a sure sign it has a few more twists of the knife up its sleeve.