Bizarre events keep occurring in an old mansion, and it's soon become obvious that something mysterious is up in the attic.
Cinematography
Venice looks deliciously rotten—every frame drips with damp aristocracy.
Acting
Deneuve's glacial restraint vs. Gassman's unhinged aristocrat: chef's kiss.

Director
Dino Risi
Trivia, insights & behind the scenes
Risi shot in an actual crumbling Venetian palazzo that was being demolished—production had to dodge falling plaster.
This is giallo-adjacent but Risi rejected the label, insisting it was 'a family drama with horror elements'—classic director denial.