If you loved Night of the Demon, try Vampyr
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
Theyboth carry the dread, slow burn mood tags, and they sit in Fantasy / Horror / Mystery territory. If that's the register that drew you to Night of the Demon, the second film will land in a comparable space — through a different lens.
dreadslow burn
What Vampyr is
A roadside inn at dusk. Distant dog barks. A young wanderer, obsessed with folklore, seeks shelter in a rural village terrorized by shadow. A dying old man begs the stranger to protect his daughters from a blood-sucking curse. Dreyer's chilling, nearly silent film deserves rediscovery.

