If you loved The Bird with the Crystal Plumage, try The Cat o' Nine Tails
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Dario Argento, and they both carry the paranoid, slow burn mood tags, and they sit in Horror / Mystery / Thriller territory. If that's the register that drew you to The Bird with the Crystal Plumage, the second film will land in a comparable space — through a different lens.
paranoidslow burn
What The Cat o' Nine Tails is
Parisian news kiosk, dawn mist curling around a crumpled racing form. A blind man’s fingers trace a crossword clue while the reporter’s voice cracks over a phone call. Under fluorescent light, helix-shaped glassware in a lab holds death in its coils.

