An American woman in Italy falls in love with a man, unaware that he has an insane wife hidden in the attic.
Production
Ludicrously opulent Italian estates you'll want to squat in.
Score
Angelo Francesco Lavagnino's music does ALL the heavy lifting.

Director
George Marshall
Trivia, insights & behind the scenes
George Sanders filmed this during his 'I'll do literally anything for a paycheck' European exile phase, mere years before his infamous suicide note calling his life 'a bit of fun which had to end.'
This was one of several 1960s films recycling Jane Eyre's 'madwoman in the attic' trope for cheap thrills, part of a weird post-Psycho trend of pathologizing women's anger as literal insanity.