I highly recommend an old 1940’s Ealing Studios movie called Dead of Night. You can stream it online at JustWatch.com and ITVX. It was the only ‘horror’ film made during WW11, as they were mostly banned during that time. Stars Melvyn Johns an Google Withers.
Essentially it’s an anthology of horror tales. An architect visits an old country farmhouse in connection with some work and when he arrives at the house, he gets the feeling that he has been there before. The owner invites him to join a group of guests who familiar to him. He tells them that he has dreamt about each one of them and begins to list events that occurred in the recurring dream. This a starts a conversation amongst the group, and each person admits to having experienced a strange, unexplainable event.
It doesn’t sound like much, but it’s genuinely one of the creepiest and most atmospheric films I’ve ever seen with a great plot twist. Well worth a watch and perfect for Halloween.