Absolutely phenomenal movie. Especially considering the budget and time period. Content warning: blood, verbal description of animal death (dog), off-screen assault of a child
A BBC program does a live feed from "the most haunted house in Britain" as a television special for Halloween but the crew gets a little more than they bargained for as mysterious phenomena begins to happen.
This has become quite notorious in a War of the Worlds kind of way. It aired precisely once on TV, presented as a real documentary and not fictional, and has never been re-shown in the U.K. Frankly, that is world-class commitment to the bit. Wikipedia says an estimated one million people called in to complain/praise the broadcast, though it does say that number is dubious. Regardless, this was impeccably done. If you liked Late Night with the Devil, you should definitely see Ghostwatch.
I do want to add that how they describe the ghost's identity at the end felt a little transphobic and if that is your read, I will absolutely not argue with you about it. I decided that it was more about possession, but that is only my take. Not to be spoiler-y, but a word of caution.
It is streaming on AMC+ and Shudder, which I get through Amazon.