Tower of Evil (1972) Early 70s English-made horror with many plot similarities to 1980s American slasher films.
Watch Me When I Kill (1977) 3rd or 4th tier Giallo horror by Antonio Bido (I don't know what any of that means).
Thighs and Whispers: A Look at Lingerie (1982) A confusing 80s time capsule filming of a lingerie show at a discotheque.